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Home > What's new calculators
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Educational Level
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Secondary school, High school and College |
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Program Purpose
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Provide step by step solutions of your problems using online calculators (online solvers)
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Problem Source
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Your textbook, etc |
1. 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 numbers
13. Exponential form of complex numbers
14. Square root of complex number
15. Cube root of complex number
16. Powers of complex numbers
17. Roots of complex numbers
2. 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
3. Random number calculator 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
4. HCF LCM calculator on 03.05.2025
1. HCF of decimal numbers
2. LCM of decimal numbers
3. HCF of fractions
4. LCM of fractions
5. Standard form calculator 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
6. Logarithm on 15.04.2025
1. Convert from exponential to logarithmic form
2. Convert from logarithmic to exponential form
7. 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
8. Decimal number on 18.11.2024
1.1 Decimal to Fraction
1.2 Fraction to Decimal
1.3 Decimal to Percentage
1.4 Percentage to Decimal
1.5 Decimal to Standard form
1.6 Standard form to Decimal form
2. Expanded form of a number
3. Succeeding number
4. Preceding number
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
9. Rational Zeros Theorem to find all possible rational roots of a polynomial on 04.10.2024
10. Scientific notation on 16.08.2024
1. Convert Scientific notation to Decimal notation
2. Convert Decimal notation to Scientific notation
3. Add, subtract, multiply and divide of Scientific notation numbers
11. Fraction on 05.08.2024
1. Numerator and Denominator Fractions
2. Proper and Improper Fractions
3. Like and Unlike fractions
4. Model Fractions (Visual Fractions)
5. Simplify Fraction
6. Equivalent Fractions
7. How many eighths are equivalent to 1/2
8. Fraction to Decimal (Mixed Number to Decimal)
9. Decimal to Fraction (Decimal to Mixed Number)
10. Fraction to Percentage (Mixed Number to Percentage)
11. Percent to Fraction
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. Add, subtract, multiply and divide of Fractions
20. Add, subtract, multiply and divide of Mixed numbers
21. Visual Model for Adding, Subtracting of Fractions
22. Simplify fraction expression
12. Prime numbers on 26.06.2024
12.1 Is 31 a prime number
12.2 Which of the following is a prime number 13,48,49,23,45,47
12.3 Which of the following is a composite number 13,19,22,31
12.4 First 1000 prime numbers
12.5 5th prime number
12.6 Prime numbers from 1 to 1000
12.7 Greatest prime number between 1 and 100
12.8 What is the next 2 prime number after 37
12.9 What is the previous 2 prime number before 37
12.10 What is the largest 2 digit prime number
12.11 What is the smallest 4 digit prime number
12.12 Express 21 as the sum of three prime numbers
12.13 are 25 and 27 co-prime numbers
12.14 Find all co-prime numbers from 1 to 100
12.15 are 11 and 13 twin primes
12.16 Find all twin prime numbers between 1 to 100
13. Multiples of a number on 26.06.2024
13.1 Find Multiple of 8 using Multiplication method
13.2 Find Multiple of 8 using Repeated addition method
13.3 Find the first 6 Multiple of 8
13.4 Find the sum of first 12 Multiple of 12
13.5 Find the average of first 12 Multiple of 12
13.6 Find Multiple of 7 that are less than or equal to 56
13.7 Find Multiple of 12 that are between 20 and 70
13.8 Find the smallest Multiple of 13 greater than 1000
13.9 Find the largest Multiple of 7 less than 1000
13.10 How many Multiple of 7 between 100 and 1000
13.11 Is 104 a multiple of 8
14. Factors and Prime factors of a number on 11.06.2024
14.1 Prime factorization by Division method
14.2 Prime factorization using Factor tree method
14.3 Prime factorization using the Ladder method
14.4 Factors by Division method
14.5 Factors by Multiplication method
14.6 Factor Pairs
15. HCF and LCM of numbers on 24.05.2024
15.1 HCF by Listing Method
15.2 HCF by Prime Factorization Method
15.3 HCF by Division Method
15.4 HCF by Repeated Division Method
15.5 LCM by Listing Method
15.6 LCM by Prime Factorization Method
15.7 LCM by Division Method
15.8 LCD
15.9 Common Factor by Listing Method
16.1 Log | Logarithm on 28.04.2024
16.2 ln - Natural log
16.3 Antilog | Antilogarithm
16.4 Anti Natural log
17. 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
18. Net Present Value (NPV) on 19.03.2024
19. Amortization on 14.03.2024
20.1 Future value using Simple Interest on 05.03.2024
20.2 Future value using Compound Interest
20.3 Future value of Annuity
20.4 Future value of Annuity Due
20.5 Present value using Simple Interest
20.6 Present value using Compound Interest
20.7 Present value of Annuity
20.8 Present value of Annuity Due
20.9 Contineous Compounding
21.1 Future value factor
21.2 Present value factor
21.3 Discount factor
21.4 Future value factor table
21.5 Present value factor table
21.6 Discount factor table
22.1 Effective interest rate
22.2 Nominal interest rate
23.1 Simple bar graph on 26.02.2024
23.2 Multiple bar graph
23.3 Percentage bar graph
23.4 Simple stacked bar chart
23.5 Percentage stacked bar chart
23.6 Pie Chart
23.7 Donut Chart
23.8 Scatter Plot | XY Graph
23.9 Line Graph
24.1 Ogive (cumulative frequency curve) on 25.01.2024
24.2 Frequency polygon with the help of Histogram
24.3 Frequency curve with the help of Histogram
25. Queueing Theory on 06.01.2024
25.1 M/M/1 Queuing Model
25.1 M/M/1/N Queuing Model (M/M/1/K)
25.1 M/M/1/N/N Queuing Model (M/M/1/K/K)
25.2 M/M/s Queuing Model (M/M/c)
25.2 M/M/s/N Queuing Model (M/M/c/K)
25.2 M/M/s/N/N Queuing Model (M/M/c/K/K)
25.2 M/M/Infinity Queuing Model
26. Binomial expansion `(2x+3y)^5` on 26.09.2023
27. Words to Numbers Converter on 24.09.2023
28. Oddment method on 29.07.2023
29.1 Octile, Quintile for ungrouped data on 27.07.2023
29.2 Octile, Quintile for grouped data
30. 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
31. Mode using Grouping Method on 12.12.2022
32. Construct an ungrouped frequency distribution table on 28.11.2022
33. Construct a grouped frequency distribution table
34. Maximum, Minimum for ungrouped data
35. Sum, Length for ungrouped data
36. Range, Mid Range for ungrouped data
37. Stem and leaf plot for ungrouped data
38. Ascending order, Descending order for ungrouped data
39. Run Length Encoding on 21.11.2022
40. Run Length Decoding
41. Modulo on 15.11.2022
42. Fast modular exponentiation
43. Coding Decoding on 19.10.2022
44. Ridder's Method on 23.05.2022
45. Vector triple product on 13.04.2022
46. Law of Sines Calculator on 13.04.2022
47. Law of Cosines Calculator
48.1 Sine Calculator on 11.04.2022
48.2 Cosine Calculator
48.3 Tangent Calculator
48.4 Cosecant Calculator
48.5 Secant Calculator
48.6 Cotangent Calculator
49.1 Inverse Sine Calculator
49.2 Inverse Cosine Calculator
49.3 Inverse Tangent Calculator
49.4 Inverse Cosecant Calculator
49.5 Inverse Secant Calculator
49.6 Inverse Cotangent Calculator
50.1 Hyperbolic Sine Calculator
50.2 Hyperbolic Cosine Calculator
50.3 Hyperbolic Tangent Calculator
50.4 Hyperbolic Cosecant Calculator
50.5 Hyperbolic Secant Calculator
50.6 Hyperbolic Cotangent Calculator
51.1 Inverse Hyperbolic Sine Calculator
51.2 Inverse Hyperbolic Cosine Calculator
51.3 Inverse Hyperbolic Tangent Calculator
51.4 Inverse Hyperbolic Cosecant Calculator
51.5 Inverse Hyperbolic Secant Calculator
51.6 Inverse Hyperbolic Cotangent Calculator
52. If `x+y+z=1,xy+yz+zx=-1` and `xyz=-1` then find `x^3+y^3+z^3` on 25.02.2022
53. If `alpha` and `beta` are roots of equation `2x^2-3x-6=0`, then find `alpha^2+beta^2` on 29.01.2022
54. If `alpha` and `beta` are roots of equation `2x^2-3x-6=0`, then find equation whose roots are `alpha^2` and `beta^2`
55. Find value of `k` for which `2x^2+kx+2=0` has real roots
56. Wrong Number series on 06.01.2022
57. Missing Number Series
58. Alphabate series on 13.12.2021
59. Missing Letter Series
60. Richardson extrapolation formula for differentiation on 11.12.2021
61. Find other polynomial when one polynomial its GCD and LCM are given
62. Lattice Multiplication on 08.12.2021
63. Alphametic Puzzles, Algebrograms, Cryptarithms, Cryptograms solver on 02.12.2021
64. Restoring Division Algorithm For Unsigned Integer on 29.11.2021
65. Non-Restoring Division Algorithm For Unsigned Integer on 01.12.2021
66 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
67.1 Find the value of h,k for which the system of equations has a Unique solution on 16.10.2021
67.2 Find the value of h,k for which the system of equations has Infinite solution
67.3 Find the value of h,k for which the system of equations has No solution
67.4 Find the value of h,k for which the system of equations is consistent
67.5 Find the value of h,k for which the system of equations is inconsistent
67.6 Determine whether the system of linear equations has a Unique solution
67.7 Determine whether the system of linear equations has Infinite solution
67.8 Determine whether the system of linear equations has No solution
67.9 Determine whether the system of linear equations is consistent
67.10 Determine whether the system of linear equations is inconsistent
68. Chinese Remainder Theorem on 08.08.2021
69. Extended Euclidean Algorithm
70. Euclid's Algorithm
71. Modular multiplicative inverse
72. Remainder theorem on 04.08.2021
73. Singular Value Decomposition (SVD) Code improved on 29.07.2021
74. 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
75. 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
76. Cubic spline interpolation on 28.06.2021
77. Missing terms in interpolation table on 27.05.2021
78. Lagrange's Inverse Interpolation formula on 24.05.2021
79. 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
80. Statistical Methods 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
81. Verifying if two functions are inverses of each other on 03.04.2021
82. 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
83. is Negative Definite Matrix on 28.02.2021
84. Row Space on 13.02.2021
85. Column Space
86. Null Space
87. Percentage on 06.02.2021
88. Arithmetic Progression
89. Geometric Progression
90. Simple Interest
91. Compound Interest
92. Relaxation method on 22.01.2021
93. Karnaugh Map method (Kmap) on 21.01.2021
94. Quine-McCluskey method
95. Halley's Method on 11.01.2021
96. Steffensen's Method
97. is Derogatory Matrix on 03.11.2020
98. 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
99. 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`
100. on 09.07.2020
1. Taylor Series method
2. cuberoot(48) using iteration method
101. Numerical Interpolation using on 06.07.2020
11. Hermite's formula
102. 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
103. 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
104. Numerical Integration using on 24.06.2020
4. Boole's Rule
5. Weddle's Rule
105. Sequencing Problems - Processing 2 Jobs Through m Machines Problem on 17.04.20
106. SOR (Successive over-relaxation) method on 11.04.20
107. For P(3,4), find the value of all six trigonometric functions on 29.03.20
108. Bairstow method on 03.03.20
109. 3 Missing frequencies when Mean or Median or mode are given on 31.01.2020
110. fog(x)=(x+2)/(3x), f(x)=x-2. Find g(x)
111. gof(x)=1/x^2, f(x)=2+x^2. Find g(x).
112. Data envelopment analysis (DEA method) on 05.01.2020
113. Determinants using Sarrus Rule on 23.10.19
114. Determinants using properties of determinants
115. Hyperbolic functions implemented on 26.09.19
116. Five number summary
117. diagonally dominant equation
118. set builder notation (Code improved) on 19.09.19
119. stem and leaf plot
120. Partial Fraction bug solved on 13.09.19
121. PERT and CPM Network diagram (improved) on 26.08.19
121. 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
123. 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
124. Logarithmic equations 07.08.19
Unitary Method (Chain Rule) 18.07.19
125. If 17 books cost Rs 306, what do 29 books cost?
126. If 5 artical cost Rs 90, the cost of 9 artical is?
127. 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?
128. 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
129. 3 unbiased coins are tossed, What is the probability of getting exactly 2 tails
130. In a throw of two dice, What is the probability getting a total of 10 or 11
131. two card is drawn at random from a pack of 52 cards. What is the probability that the drawn cards are both aces
132. 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
133. 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 ?
134. 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
135. `(x^2+1/x^2)-8(x+1/x)+14=0`
136. `4((4x+1)/(4x-1))^(2)+(4x+1)/(4x-1)=3`
137. `12((x)/(x-1))+12((x-1)/(x))=25`
138. 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(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 projections of B onto A
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 dependent and linearly independent vectors
139. Normal Distribution Table
140. t Distribution Table
141. Chi square Distribution Table
142. F Distribution Table
143. Binomial Distribution Table
144. F test
145. t-test
146. Standard error
147. Sign test
148. Mann whitney U test
149. Kruskal-wallis test
150. Chi square test
151. Median test
152. Mood's Median test
153. Cholesky decomposition method of a System of linear equations on 06.06.19
154. Covariance - Population Covariance, Sample Covariance for bivariate grouped data on 03.06.19
155. Covariance - Population Covariance, Sample Covariance for bivariate grouped data on 03.06.19
156. LU decomposition method / Crout's method of a System of linear equations on 30.05.19
157. Mean, Quartile, Decile, Percentile deviation for ungrouped data on 19.05.19
158. Mean, Quartile, Decile, Percentile deviation for grouped data on 19.05.19
159. One-way ANOVA on 09.05.19
160. Two-way ANOVA on 09.05.19
161. Power Method for dominant eigenvalue on 28.04.19
162. Partial Fraction on 19.04.19
163. Find roots of non-linear equations using Modified Newton Raphson method (Multivariate Newton Raphson method) on 19.04.19
164. Solve linear equations using Elimination method on 19.04.19
165. Maximize Profit case in transportation problem on 07.04.19
166. Revised Simplex method on 26.03.19
167. Moore-Penrose Pseudoinverse on 22.03.19
168. Geometric mean, Harmonic mean for ungrouped data on 21.03.19
169. Geometric mean, Harmonic mean for grouped data on 21.03.19
170. LQ Decomposition on 20.03.19
171. Muller method on 20.03.19
172. 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]]`
173. 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
174. 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
175. class and their frequency table on 31.12.18
176. less than or more than type cumulative frequency table on 31.12.18
177. Ratio and Proportion on 02.12.18
178. Synthetic division on 12.11.18
179. Singular Value Decomposition (SVD) on 04.11.18
180. All problem solution using search box on 05.10.18
181. Share solution on facebook, twitter with your friends on 17.08.18
182. Matrix Structure on 24.07.18
183. Algorithm, Formulas, Examples added at respective pages on 20.07.18
184. Simplex method Algorithm and examples on 08.07.18
185. Statistical Methods 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
186. Calculus
1. Trigonometry on 20.03.18
1. Simplifying trigonometric equations, proving identities,
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)`
2.1 If `sin(x)=5/13` then Find the value 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. Find maximum and minimum value of `y=x^3+6x^2-15x+7`
187. About us
188. Algebra
1. Functions
2. Set Theory (using builder form)
3. Interval notation and set builder notation
189. Word Problems
1. Age word problems
2. Unitary Method (Chain Rule)
190. Simplex method
1. Branch and Bound method
2. 0-1 Integer programming problem
191. Game Theory
1. Bimatrix method
192. Matrix operations
1. Cholesky Decomposition
2. QR Decomposition (Gram Schmidt Method)
3. QR Decomposition (Householder Method)
193. Solve numerical differential equation using
1. Adams bashforth predictor method
2. Milne's simpson predictor corrector method
194. Coordinate Geometry
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