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Educational Level Secondary school, High school and College
Program Purpose Provide step by step solutions of your problems using online calculators (online solvers)
Problem Source Your textbook, etc

1. Partial Fractions on 19.04.19

2. Find roots of non-linear equations using Multivariate Newton Raphson method on 19.04.19

3. Solve linear equations using Elimination method on 19.04.19
4. Maximize Profit case in transportation problem on 07.04.19

5. Revised Simplex method on 26.03.19

6. Moore-Penrose Pseudoinverse on 22.03.19

7. Geometric mean, Harmonic mean for ungrouped data on 21.03.19
8. Geometric mean, Harmonic mean for grouped data on 21.03.19
9. LQ Decomposition on 20.03.19
10. Muller method on 20.03.19
11. 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]]`
12. 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
13. 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


14. class and their frequency table on 31.12.18
15. less than or more than type cumulative frequency table on 31.12.18


16. Ratio and Proportion on 02.12.18

17. binary to gray code on 21.11.18

18. gray code to binary on 21.11.18

19. Synthetic division on 12.11.18

20. Singular Value Decomposition (SVD) on 04.11.18

21. All problem solution using search box on 05.10.18
22. Share solution on facebook, twitter with your friends on 17.08.18
23. Matrix Structure on 24.07.18
24. Algorithm, Formulas, Examples added at respective pages on 20.07.18
25. Simplex method Algorithm and examples on 08.07.18
26. 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
27. 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 all the 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`
28. About us

29. Algebra
1. Functions
2. Set Theory (using builder form)
3. Interval notation and set builder notation

30. Word Problems
1. Problem on Ages
2. Unitary Method

31. Simplex method
1. Branch and Bound method
2. 0-1 Integer programming problem

32. Game Theory
1. Bimatrix method

33. Matrix operations
1. Cholesky Decomposition
2. QR Decomposition (Gram Schmidt Method)
3. QR Decomposition (Householder Method)

34. Solve numerical differential equation using
1. Adams bashforth predictor method
2. Milne's simpson predictor corrector method

35. Coordinate Geometry

 

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