|
|
|
|
Home > What's new
|
|
1. Ciphers on 02.11.2026
1. Running Key Cipher
2. Progressive Key Cipher
2. Ciphers on 23.10.2026
1. Scytale Cipher
2. Homophonic Cipher
3. Fractionated Morse Cipher
4. Pollux Cipher
5. Morbit Cipher
6. Route Cipher
7. Myszkowski Transposition Cipher
8. Straddling Checkerboard Cipher
9. Monome-Dinome Cipher
10. Redefence Cipher
11. Phillips Cipher
12. Ragbaby Cipher
13. Digrafid Cipher
14. Interrupted Key Cipher
15. Keyword Cipher
3. Rule of Three on 23.09.2026
4.1 Partial derivative on 03.09.2026
4.2 Implicit differentiation
5. Negative Log / Negative Logarithm on 22.08.2026
6. Ciphers on 19.07.2026
1. Variant Beaufort Cipher
2. Keyed Caesar Cipher
3. AMSCO Cipher
7. Ciphers on 19.04.2026
1. Alberti Cipher
2. Double Transposition Cipher
3. Enigma machine Cipher
4. Four Square Cipher
5. Gronsfeld Cipher
6. Hill Cipher
7. Kamasutra Cipher / Vatsyayana Cipher
8. Multiplicative Cipher / Decimation Cipher
9. Morse Code Translator
10. Playfair Cipher
11. Porta Cipher
12. Three Square Cipher
13. Two-Square Cipher / Double Playfair Cipher
8. Ciphers on 08.04.2026
1. A1Z26 Cipher (Letter to number Cipher)
2. ADFGVX Cipher
3. ADFGX Cipher
4. Affine Cipher
5. Atbash Cipher
6. Autokey Cipher / Autoclave Cipher
7. Bacon Cipher
8. Beaufort Cipher
9. Bifid Cipher
10. Caesar Cipher / Additive cipher / Shift Cipher
11. Chaocipher
12. Columnar transposition Cipher
13. Nihilist Cipher
14. Polybius Square Cipher
15. Rail fence Cipher
16. ROT-5 Cipher
17. ROT-13 Cipher
18. ROT-18 Cipher
19. ROT-47 Cipher
20. ROT-N Cipher / ROT Cipher
21. Running Key Cipher
22. Substitution Cipher / Monoalphabetic Substitution Cipher
23. Tap code Cipher / Knock code Cipher
24. Trifid Cipher
25. Trithemius Cipher
26. Vigenere Cipher
9. Numerical Integration on 24.03.2026
1. Left Riemann Sum for a table
2. Right Riemann Sum for a table
3. Midpoint Rule for a table
4. Left endpoint approximation for a table
5. Right endpoint approximation for a table
1. Left Riemann Sum for a function
2. Right Riemann Sum for a function
3. Midpoint Rule for a function
4. Left endpoint approximation for a function
5. Right endpoint approximation for a function
10. Missing Operators solver on 20.02.2026
11.1 Increasing and decreasing functions at point on 18.02.2026
11.2 Increasing and decreasing intervals
12.1 Second derivative test for Local maxima and minima on 17.02.2026
12.2 First derivative test for Local maxima and minima
13. Polar to Rectangular form of complex number on 16.02.2026
14. Solve (2nd order) numerical differential equation using on 04.02.2026
1. Improved Euler method / Modified Euler method
2. Midpoint Euler method
3. Taylor Series method
15. For angle `theta`, find values of all six trigonometric functions on 16.01.2026
16. Square root by Babylonian method on 10.01.2026
17. Cube root by Babylonian method
18. Assignment Problem using LP Model Formulation on 07.01.2026
19. Transportation Problem using LP Model Formulation
20. Transshipment Problem on 05.01.2026
21. Fermat's Little Theorem on 29.12.2025
22. Raw Moments to Central Moments conversion (on 24.12.2025)
The first four moments of a distribution about the value 4 are 1,4,10,45. Calculate the first four moments about mean and origin
23. Raw Moments and Central Moments for grouped data on 23.12.2025
24. Raw Moments and Central Moments for ungrouped data
25. Thomas algorithm method on 12.11.2025
26. Inverse Power Method for dominant eigenvalue on 11.11.2025
27. Verify polynomial is divided by another polynomial or not on 06.10.2025
28. Determinant by gaussian elimination on 05.08.2025
29. Determinant by Expanding along row / column
30. Determinants using montante (bareiss algorithm)
31. Determinant using Leibniz formula
32. Complex Number on 10.06.2025
1. Adding complex numbers
2. Subtracting complex numbers
3. Multiplying complex numbers
4. Dividing complex numbers
5. Real part of complex number
6. Imaginary part of complex number
7. Conjugate of complex number
8. Modulus / Magnitude / Absolute value of complex numbers
9. Multiplicative inverse of complex numbers
10. Reciprocal of complex number
11. Argument / Arg / Angle / Phase of complex number
12. Polar form of complex number
13. Exponential form of complex number
14. Square root of complex number
15. Cube root of complex number
16. Powers of complex numbers
17. Roots of complex numbers
33. Polynomial on 28.05.2025
1. Identify the like terms in algebraic expression
2. Classify polynomial as monomials, binomials, trinomials, or other polynomial
3. Classify polynomial as linear, quadratic and cubic polynomials
34. Random number on 05.05.2025
1. Random number generator
2. Random string generator
3. Random password generator
4. Random list generator
5. Roll dice
6. Flip coin toss
7. Random card shuffle
8. Random binary number generator
9. Random octal number generator
10. Random hex number generator
11. Random n digit number generator
35. HCF LCM on 03.05.2025
1. HCF of decimal numbers
2. LCM of decimal numbers
3. HCF of fractions
4. LCM of fractions
36. Standard form on 02.05.2025
1. Standard form of a number
2. Standard form of rational number
3. Standard form of linear equations in one variable
4. Standard form of linear equations in two variables
5. Standard form of linear equations (any variables)
6. Standard form of quadratic equation
7. Standard form of cubic polynomial
8. Standard form of polynomial
37. Logarithm on 15.04.2025
1. Convert from exponential to logarithmic form
2. Convert from logarithmic to exponential form
38. Angles on 26.02.2025
1. Complementary angle
2. Supplementary angle
3. Reference angle
4. Decide Types of angles based on measurement (Right angle, Acute angle, Obtuse angle)
5. Quadrant of angle
39. Decimal number on 18.11.2024
1.1 Decimal to Fraction
1.2 Fraction to Decimal
1.3 Decimal to Percent
1.4 Percent to Decimal
1.5 Decimal to Standard form
1.6 Standard form to Decimal form
2. Expanded form of a number
3. Succeeding number / Successor
4. Preceding number / Predecessor
5. Even or odd number
6. Comparing Numbers / Greater Than Or Less Than
7. Minimum number
8. Maximum number
9. Ascending, Descending order of numbers
10. Rounding Numbers
11. Classifying numbers (Rational,Irrational,Real,Natural,Integer)
12. Terminating or non terminating decimal expansion
13. Additive inverse
14. Multiplicative inverse
15. Opposite number
16. Reciprocal number
17. Absolute value of a number
18. Plotting numbers on a number line
19. Like and Unlike decimals
20. Convert unlike decimals to like decimals
21. +, -, *, / of numbers
22. Model +, - of numbers
23. Simplify expression
40. Rational Zeros Theorem to find all possible rational roots of a polynomial on 04.10.2024
41. Scientific notation on 16.08.2024
1. Convert Scientific notation to Decimal
2. Convert Decimal to Scientific notation
3. Add, subtract, multiply and divide of Scientific notation
42. Fraction on 05.08.2024
1. Numerator and Denominator Fractions
2. Classify Fractions (Proper and Improper Fractions)
3. Like and Unlike fractions
4. Model Fractions (Visual Fractions)
5. Reducing Fractions
6. Equivalent Fractions
7. How many eighths are equivalent to 1/2
8. Mixed Number to Decimal
9. Decimal to Mixed Number
10. Fraction to Percent (Mixed Number to Percent)
11. Percent to Fraction (Percent to Mixed Number)
12. Improper fraction to Mixed number
13. Mixed Number to Improper Fraction
14. Reciprocal of a fraction
15. LCD of fractions
16. Convert unlike fraction to like fraction
17. Comparing fractions
18. Ascending and descending order of fractions
19. Adding Fractions
20. Subtracting Fractions
21. Multiplying Fractions
22. Dividing Fractions
23. Add, subtract, multiply and divide of Mixed numbers
24. Visual Model for Adding, Subtracting of Fractions
25. Simplifying Complex Fractions
43. Prime numbers on 26.06.2024
43.1 Is 31 a prime number
43.2 Which of the following is a prime number 13,48,49,23,45,47
43.3 Which of the following is a composite number 13,19,22,31
43.4 First 1000 prime numbers
43.5 5th prime number
43.6 Prime numbers from 1 to 1000
43.7 Greatest prime number between 1 and 100
43.8 What is the next 2 prime number after 37
43.9 What is the previous 2 prime number before 37
43.10 What is the largest 2 digit prime number
43.11 What is the smallest 4 digit prime number
43.12 Express 21 as the sum of three prime numbers
43.13 are 25 and 27 co-prime numbers
43.14 Find all co-prime numbers from 1 to 100
43.15 are 11 and 13 twin primes
43.16 Find all twin prime numbers between 1 to 100
44. Multiples of a number on 26.06.2024
44.1 Find Multiple of 8 using Multiplication method
44.2 Find Multiple of 8 using Repeated addition method
44.3 Find the first 6 Multiple of 8
44.4 Find the sum of first 12 Multiple of 12
44.5 Find the average of first 12 Multiple of 12
44.6 Find Multiple of 7 that are less than or equal to 56
44.7 Find Multiple of 12 that are between 20 and 70
44.8 Find the smallest Multiple of 13 greater than 1000
44.9 Find the largest Multiple of 7 less than 1000
44.10 How many Multiple of 7 between 100 and 1000
44.11 Is 104 a multiple of 8
45. Factors and Prime factors of a number on 11.06.2024
45.1 Prime factorization by Division method
45.2 Prime factorization using Factor tree method
45.3 Prime factorization using the Ladder method
45.4 Factors by Division method
45.5 Factors by Multiplication method
45.6 Factor Pairs
46. HCF and LCM of numbers on 24.05.2024
46.1 HCF by Listing Method
46.2 HCF by Prime Factorization Method
46.3 HCF by Division Method
46.4 HCF by Repeated Division Method
46.5 LCM by Listing Method
46.6 LCM by Prime Factorization Method
46.7 LCM by Division Method
46.8 LCD
46.9 Common Factors by Listing Method
47.1 Log / Logarithm on 28.04.2024
47.2 ln - Natural log
47.3 Antilog / Antilogarithm
47.4 Anti Natural log
48. The Equation for the terminal Side `theta` is `2x+y=0, x>=0`. Find the value of all six trigonometric functions on 25.04.2024
49. Net Present Value (NPV) on 19.03.2024
50. Amortization on 14.03.2024
51.1 Future value using Simple Interest on 05.03.2024
51.2 Future value using Compound Interest
51.3 Future value of Annuity
51.4 Future value of Annuity Due
51.5 Present value using Simple Interest
51.6 Present value using Compound Interest
51.7 Present value of Annuity
51.8 Present value of Annuity Due
51.9 Contineous Compounding
52.1 Future value factor
52.2 Present value factor
52.3 Discount factor
52.4 Future value factor table
52.5 Present value factor table
52.6 Discount factor table
53.1 Effective interest rate
53.2 Nominal interest rate
54.1 Simple bar graph on 26.02.2024
54.2 Multiple bar graph
54.3 Percentage bar graph
54.4 Simple stacked bar chart
54.5 Percentage stacked bar chart
54.6 Pie Chart
54.7 Donut Chart
54.8 Scatter Plot / XY Graph
54.9 Line Graph
55.1 Ogive (cumulative frequency curve) on 25.01.2024
55.2 Frequency polygon with the help of Histogram
55.3 Frequency curve with the help of Histogram
56. Queueing Theory on 06.01.2024
56.1 M/M/1 Queuing Model
56.1 M/M/1/N Queuing Model (M/M/1/K)
56.1 M/M/1/N/N Queuing Model (M/M/1/K/K)
56.2 M/M/s Queuing Model (M/M/c)
56.2 M/M/s/N Queuing Model (M/M/c/K)
56.2 M/M/s/N/N Queuing Model (M/M/c/K/K)
56.2 M/M/Infinity Queuing Model
57. Binomial expansion `(2x+3y)^5` on 26.09.2023
58. Words to Numbers Converter on 24.09.2023
59. Oddment method on 29.07.2023
60. Index Number on 16.07.2023
1.1 Fixed base method
1.2 Chain base method
2. Unweighted Index Number
2.1 Simple Aggregative Method
2.2 Simple Average of Price Relative Method (using the arithmetic mean)
2.3 Simple Average of Price Relative Method (using the geometric mean)
3.1 Fixed base method for bivariate grouped data
3.2 Chain base method for bivariate grouped data
4.1 Conversion of fixed base index numbers into chain base index numbers
4.2 Conversion of chain base index numbers into fixed base index numbers
5. Weighted Index Numbers
5.1 Laspeyre's price index number
5.2 Paasche's price index number
5.3 Fisher's price index number
5.4 Marshall Edgeworth's price index number
5.5 Dorbish-Bowley's price index number
5.6 Kelly's price index number
5.7 Walsh's price index number
6.1 Weighted aggregate method
6.2 Weighted average of price relatives method
7. Cost of living Index number
7.1 Aggregate expenditure method
7.2 Family budget method
61. Mode using Grouping Method on 12.12.2022
62. Construct an ungrouped frequency distribution table on 28.11.2022
63. Construct a grouped frequency distribution table
64. Maximum, Minimum for ungrouped data
65. Sum, Length for ungrouped data
66. Range, Mid Range for ungrouped data
67. Stem and leaf plot for ungrouped data
68. Ascending order, Descending order for ungrouped data
69. Run Length Encoding on 21.11.2022
70. Run Length Decoding
71. Modulo on 15.11.2022
72. Power Mod / Fast modular exponentiation
73. Coding Decoding on 19.10.2022
74. Ridder's Method on 23.05.2022
75. Vector triple product on 13.04.2022
76. Law of Sines Calculator on 13.04.2022
77. Law of Cosines Calculator
78.1 Sine Calculator on 11.04.2022
78.2 Cosine Calculator
78.3 Tangent Calculator
78.4 Cosecant Calculator
78.5 Secant Calculator
78.6 Cotangent Calculator
79.1 Inverse Sine Calculator
79.2 Inverse Cosine Calculator
79.3 Inverse Tangent Calculator
79.4 Inverse Cosecant Calculator
79.5 Inverse Secant Calculator
79.6 Inverse Cotangent Calculator
80.1 Hyperbolic Sine Calculator
80.2 Hyperbolic Cosine Calculator
80.3 Hyperbolic Tangent Calculator
80.4 Hyperbolic Cosecant Calculator
80.5 Hyperbolic Secant Calculator
80.6 Hyperbolic Cotangent Calculator
81.1 Inverse Hyperbolic Sine Calculator
81.2 Inverse Hyperbolic Cosine Calculator
81.3 Inverse Hyperbolic Tangent Calculator
81.4 Inverse Hyperbolic Cosecant Calculator
81.5 Inverse Hyperbolic Secant Calculator
81.6 Inverse Hyperbolic Cotangent Calculator
82. If `x+y+z=1,xy+yz+zx=-1` and `xyz=-1` then find `x^3+y^3+z^3` on 25.02.2022
83. If `alpha` and `beta` are roots of equation `2x^2-3x-6=0`, then find `alpha^2+beta^2` on 29.01.2022
84. If `alpha` and `beta` are roots of equation `2x^2-3x-6=0`, then find equation whose roots are `alpha^2` and `beta^2`
85. Find value of `k` for which `2x^2+kx+2=0` has real roots
86. Wrong Number series on 06.01.2022
87. Missing Number Series
88. Alphabet series on 13.12.2021
89. Missing Letter Series
90. Richardson extrapolation formula for differentiation on 11.12.2021
91. Find other polynomial when one polynomial its GCD and LCM are given
92. Lattice Multiplication on 08.12.2021
93.1 Missing Digits solver, fill in the blank solver on 06.11.2025
93.2 Alphametic Puzzles, Algebrograms, Cryptarithms, Cryptograms solver on 02.12.2021
94. Restoring Division Algorithm For Unsigned Integer on 29.11.2021
95. Non-Restoring Division Algorithm For Unsigned Integer on 01.12.2021
96 Solve (2nd order) numerical differential equation using (on 17.10.2021)
1. Euler method
2. Runge-Kutta 2 method
3. Runge-Kutta 3 method
4. Runge-Kutta 4 method
97.1 Find the value of h,k for which the system of equations has a Unique solution on 16.10.2021
97.2 Find the value of h,k for which the system of equations has Infinite solution
97.3 Find the value of h,k for which the system of equations has No solution
97.4 Find the value of h,k for which the system of equations is consistent
97.5 Find the value of h,k for which the system of equations is inconsistent
97.6 Determine whether the system of linear equations has a Unique solution
97.7 Determine whether the system of linear equations has Infinite solution
97.8 Determine whether the system of linear equations has No solution
97.9 Determine whether the system of linear equations is consistent
97.10 Determine whether the system of linear equations is inconsistent
98. Chinese Remainder Theorem on 08.08.2021
99. Extended Euclidean Algorithm
100. Euclid's Algorithm
101. Modular multiplicative inverse
102. Remainder theorem on 04.08.2021
103. Singular Value Decomposition (SVD) Code improved on 29.07.2021
104. Numerical Differentiation first order and second order using on 14.07.2021
1. 2 point Forward, Backward, Central difference formula
2. 3 point Forward, Backward, Central difference formula
3. 4 point Forward, Backward, Central difference formula
4. 5 point Forward, Central difference formula
105. Time Series and Forecasting on 07.07.2021
1. Simple Moving Average
2. Weighted Moving Average
3. Single Exponential Smoothing
4. Simple Moving Average forecast
5. Weighted Moving Average forecast
6. Single Exponential Smoothing forecast
106. Cubic spline interpolation on 28.06.2021
107. Missing terms in interpolation table on 27.05.2021
108. Lagrange's Inverse Interpolation formula on 24.05.2021
109. on 11.05.2021
1. LU decomposition using Doolittle's method of Matrix
2. LU decomposition using Crout's method of Matrix
3. Solve systems of linear equations using Doolittle's method
4. Solve systems of linear equations using Crout's method
110. Statistics on 09.04.2021
1. Five number summary for ungrouped data
2. Box and Whisker Plots for ungrouped data
3. Five number summary for grouped data
4. Box and Whisker Plots for grouped data
111. Verifying if two functions are inverses of each other on 03.04.2021
112. Polynomial on 13.03.2021
1. Polynomial in ascending order
2. Polynomial in descending order
3. Degree of a polynomial
4. Leading term of a polynomial
5. Leading coefficient of a polynomial
6. Determine expression is a polynomial or not
7. Zeros of a polynomial
113. is Negative Definite Matrix on 28.02.2021
114. Row Space on 13.02.2021
115. Column Space
116. Null Space
117. Percentage on 06.02.2021
118. Arithmetic Progression
119. Geometric Progression
120. Simple Interest
121. Compound Interest
122. Relaxation method on 22.01.2021
123. Karnaugh Map method (Kmap) on 21.01.2021
124. Quine-McCluskey method
125. Halley's Method on 11.01.2021
126. Steffensen's Method
127. is Derogatory Matrix on 03.11.2020
128. Functions on 30.07.2020
1. Domain of a function
2. Range of a function
3. Inverse of a function
4. Properties of a function
5. Vertex of a function
6. Focus of a function
7. axis symmetry of a parabola
8. Directrix of a function
9. Intercept of a function
10. Parity of a function
11. Asymptotes of a function
129. on 26.07.2020
1. solve equation `3/y+14/x=5,21/x-1/y=2` by taking `1/x=X` and `1/y=Y`
2. solve equation `3x+14y=5xy,21y-x=2xy` by dividing `xy`
130. on 09.07.2020
1. Taylor Series method
2. cuberoot(48) using iteration method
131. Numerical Interpolation using on 06.07.2020
11. Hermite's formula
132. Numerical Interpolation using on 24.06.2020
6. Gauss Forward formula
7. Gauss Backward formula
8. Stirling's formula
9. Bessel's formula
10. Everett's formula
133. Numerical Differentiation using on 24.06.2020
4. Newton's Divided Difference formula
5. Lagrange's formula
6. Stirling's formula
7. Bessel's formula
134. Numerical Integration using on 24.06.2020
4. Boole's Rule
5. Weddle's Rule
135. Sequencing Problems - Processing 2 Jobs Through m Machines Problem on 17.04.20
136. SOR (Successive over-relaxation) method on 11.04.20
137. For P(3,4), find the value of all six trigonometric functions on 29.03.20
138. Bairstow method on 03.03.20
139. 3 Missing frequencies when Mean or Median or mode are given on 31.01.2020
140. fog(x)=(x+2)/(3x), f(x)=x-2. Find g(x)
141. gof(x)=1/x^2, f(x)=2+x^2. Find g(x).
142. Data envelopment analysis (DEA method) on 05.01.2020
143. Determinants using Sarrus Rule on 23.10.19
144. Determinants using properties of determinants
145. Hyperbolic functions implemented on 26.09.19
146. Five number summary
147. diagonally dominant equation
148. set builder notation (Code improved) on 19.09.19
149. Stem and leaf plot
150. Partial Fraction bug solved on 13.09.19
151. PERT and CPM Network diagram (improved) on 26.08.19
151. BCD and Excess 3 Addition and Subtraction using 9's or 10's complement Method on 22.08.19
1. BCD Addition
2. BCD Subtraction using 9's complement
3. BCD Subtraction using 10's complement
4. Excess 3 Addition
5. Excess 3 Subtraction using 9's complement
6. Excess 3 Subtraction using 10's complement
153. Conversion on 22.08.19
1. Decimal To BCD
2. Binary To BCD
3. Octal To BCD
4. Hexadecimal To BCD
5. BCD To Decimal
6. BCD To Binary
7. BCD To Octal
8. BCD To Hexadecimal
9. BCD To Excess 3
10. Decimal To Excess 3
11. Binary To Excess 3
12. Octal To Excess 3
13. Hexadecimal To Excess 3
14. Excess 3 To Decimal
15. Excess 3 To Binary
16. Excess 3 To Octal
17. Excess 3 To Hexadecimal
18. Excess 3 To BCD
19. Decimal To Gray code
20. Binary To Gray code
21. Octal To Gray code
22. Hexadecimal To Gray code
23. Gray code To Decimal
24. Gray code To Binary
25. Gray code To Octal
26. Gray code To Hexadecimal
154. Logarithmic equations 07.08.19
Unitary Method (Chain Rule) 18.07.19
155. If 17 books cost Rs 306, what do 29 books cost?
156. If 5 artical cost Rs 90, the cost of 9 artical is?
157. If 20 persons can do a piece of work in 7 days, then the number of persons required to complete the work in 28 days is?
158. If 5 men working 6 hours a day can reap a field in 20 days, in how many days will 15 men reap the field, working 8 hours a day?
Probability 17.07.19
159. 3 unbiased coins are tossed, What is the probability of getting exactly 2 tails
160. In a throw of two dice, What is the probability getting a total of 10 or 11
161. two card is drawn at random from a pack of 52 cards. What is the probability that the drawn cards are both aces
162. A bag contains 5 blue and 4 black balls. Three balls are drawn at random, what is the probability that 2 are blue and 1 is black?
Age word problems 16.07.19
163. 10 years ago, A was 4 times as old as B. 10 years hence, A will be 2 times as old as B. At present, A's age and B's age is ?
164. The ratio of Meena's age and Kamla's age is 3 : 5 and the sum of Meena's age and Kamla's ages is 80 years. The ratio of their ages after 10 years will be ?
Quadratic equations (Solution by considering m) on 10.07.19
165. `(x^2+1/x^2)-8(x+1/x)+14=0`
166. `4((4x+1)/(4x-1))^(2)+(4x+1)/(4x-1)=3`
167. `12((x)/(x-1))+12((x-1)/(x))=25`
168. Vector Algebra on 08.07.19
1. Addition/Subtraction of two vectors
2. Scalar Multiplication of vectors
3. Dot Product of two vectors
4. Cross Product of two vectors
5. Magnitude of a vector / length of a vector
6. Unit vector
7. Direction cosines of a vector
8. Component form of a vector given two points
9. Angle between two vectors
10. Vector projection
11. Orthogonal vectors
12. Collinear vectors
13. Coplanar vectors
14. Scalar triple product
15. Area of triangle determined by two vectors
16. Area of parallelogram determined by two vectors
17. Volume of pyramid determined by vectors
18. Volume of Parallelepiped determined by vectors
19. Decomposition of vector in basis
20. Linearly independent or dependent vectors
169. Normal Distribution Table
170. t Distribution Table
171. Chi square Distribution Table
172. F Distribution Table
173. Binomial Distribution Table
174. F test
175. t-test
176. Standard error
177. Sign test
178. Mann whitney U test
179. Kruskal-wallis test
180. Chi square test
181. Median test
182. Mood's Median test
183. Cholesky decomposition method of a System of linear equations on 06.06.19
184. Covariance - Population Covariance, Sample Covariance for bivariate grouped data on 03.06.19
185. Covariance - Population Covariance, Sample Covariance for bivariate grouped data on 03.06.19
186. LU decomposition method / Crout's method of a System of linear equations on 30.05.19
187. One-way ANOVA on 09.05.19
188. Two-way ANOVA on 09.05.19
189. Power Method for dominant eigenvalue on 28.04.19
190. Partial Fraction on 19.04.19
191. Find roots of non-linear equations using Modified Newton Raphson method (Multivariate Newton Raphson method) on 19.04.19
192. Solve linear equations using Elimination method on 19.04.19
193. Maximize Profit case in Transportation problem on 07.04.19
194. Revised Simplex method on 26.03.19
195. Moore-Penrose Pseudoinverse on 22.03.19
196. Geometric mean, Harmonic mean for ungrouped data on 21.03.19
197. Geometric mean, Harmonic mean for grouped data on 21.03.19
198. LQ Decomposition on 20.03.19
199. Muller's method on 20.03.19
200. Matrix Algebra on 17.03.19
1. Matrix Algebra with variables
`[[2x,3y],[3x,4z]]`
2. Matrix Algebra with complex numbers
`[[-5i,3i],[4i,5i]]`
3. Matrix Algebra with surds
`[[1/sqrt(2),sqrt(2)],[4,-5]]`
201. PERT and CPM on 10.03.19
1. Network diagram
1. Activity, Predecessors
2. Activity i-j
3. Activity i-j, Name of Activity
2. Critical path, Total float, Free float, Independent float
1. Activity, Predecessors, Duration
2. Activity i-j, Duration
3. Activity i-j, Name of Activity, Duration
3. Project scheduling with uncertain activity times (Optimistic, Most likely, Pessimistic)
1. Activity, Predecessors, to, tm, tp
2. Activity i-j, to, tm, tp
3. Activity i-j, Name of Activity, to, tm, tp
4. Project crashing to solve Time-Cost Trade-Off with fixed Indirect cost
1. Activity, Predecessors, Normal Time & Cost, Crash Time & Cost and Indirect Cost
2. Activity i-j, Normal Time & Cost, Crash Time & Cost and Indirect Cost
3. Activity i-j, Name of Activity, Normal Time & Cost, Crash Time & Cost and Indirect Cost
5. Project crashing to solve Time-Cost Trade-Off with varying Indirect cost
1. Activity, Predecessors, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
2. Activity i-j, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
3. Activity i-j, Name of Activity, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
202. Transportation Problem
1. Heuristic method-1 on 07.01.19
2. Heuristic method-2 on 07.01.19
3. Row minima method on 24.12.18
4. Column minima method on 24.12.18
5. Russell's approximation method on 24.12.18
203. class and their frequency table on 31.12.18
204. less than or more than type cumulative frequency table on 31.12.18
205. Ratio and Proportion on 02.12.18
206. Synthetic division on 12.11.18
207. Singular Value Decomposition (SVD) on 04.11.18
208. All problem solution using search box on 05.10.18
209. Share solution on facebook, twitter with your friends on 17.08.18
210. Matrix Structure on 24.07.18
211. Algorithm, Formulas, Examples added at respective pages on 20.07.18
212. Simplex method Algorithm and examples on 08.07.18
213. Statistics on 30.03.18
1. Permutation & combination
1. Find `n!`
2. Find `(n!)/(m!)`
3. Find `{::}^nP_r`
4. Find `{::}^nC_r`
5. How many words can be formed from the letters of the word daughter?
6. How many ways a committee of players can be formed ?
7. Permutation, Combination List
2. Probability
1. Coin
2. Dice
3. Cards
4. Balls
214. Calculus
1. Trigonometry on 20.03.18
1. Simplifying trigonometric expressions,
eg. (1) `sin(30)*cos(60)+sin(30)*cos(60)`, (2) `tan(x)+cot(x)`, (3) `tan^2(x)-sin^2(x)`, (4) `csc(x)/cos(x)-cos(x)/sin(x)`
1.2 Proving trigonometric identities,
eg. (1) `sin(30)*cos(45)*tan(60)=sin(45)*cos(60)*cot(30)`, (2) `sin^2(50)+sin^2(40)=1`
2.1 If `sin(x)=5/13` then Find the values of other five trigonometric functions
2.2 If `sin(x)=3/5` then solve expression `cos(x)csc(x)+tan(x)sec(x)`
2. Derivative on 20.03.18
1. Find Derivative,
eg. (1) `d/(dx)(2x^(3)-2x^(2)-5x+4)`, (2) `d/(dx)(log(x)e^(x))`, (3) `d/(dx)(3cos(sin(x)))`
2. Second Derivative
3. Third Derivative
4. Fourth Derivative
5. nth Derivative / Higher order Derivative
6. Derivative at a Point
215. About us
216. Algebra
1. Functions
2. Set Theory (using builder form)
3. Interval notation and set builder notation
217. Word Problems
1. Age word problems
2. Unitary Method (Chain Rule)
218. Simplex method
1. Branch and Bound method
2. 0-1 Integer programming problem
219. Game Theory
1. Bimatrix method
220. Matrix operations
1. Cholesky Decomposition
2. QR Decomposition (Gram Schmidt Method)
3. QR Decomposition (Householder Method)
221. Solve numerical differential equation using
1. Adams bashforth predictor method
2. Milne's simpson predictor corrector method
222. Coordinate Geometry
|
|
|
|
|
|
|
|
Share this solution or page with your friends.
|
|
|
|
|
