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Yan W.

Tutor for two years

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Numerical Analysis

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Question:

Solve the linear system problem Ax = b.

Yan W.

Answer:

According to the nature of matrix A, we can have several different method to solve it. Make a simple example, if A is a symmetric matrix, we can gauss seidel method to solve this linear system.

C Programming

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Question:

Find the first derivative of f(x) at given x and f(x)

Yan W.

Answer:

We can use FD6( 6th-order finite difference formulae) algorithm to get the result.

Algebra

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Question:

x+2y = 5 and x -y = -1 solve for x+y =?

Yan W.

Answer:

x=1 y =2 x+y = 3

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