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David Craven


Last seen: 2年以上 前 |  2017 年からアクティブ

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質問


I am trying to approximate the global minimum of a function within a given domain, and the index of that global minimum.
Inputs: Func - an arbitrary function. eg. @(x) x.^2 + 4 xStart - The first x value in the function domain xEnd ...

6年以上 前 | 1 件の回答 | 0

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質問


identity matrix what am i doing wrong
The singularitytest function will test whether a matrix is singular. If it is, the output should be 1. Otherwise, the output sho...

6年以上 前 | 1 件の回答 | 0

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質問


I run this identity test and get this response....what am I doing wrong
function result = singularitytest(A) d = det(A); c = cond(d) <= 1e-10; end Output argument "result" (and may...

6年以上 前 | 1 件の回答 | 0

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質問


how do i use the in-built inv function to calculate a matrix inverse and then calculate A-1A and AA-1.
how do i use the in-built inv function to calculate a matrix inverse and then calculate A-1A and AA-1.

6年以上 前 | 2 件の回答 | 0

2

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質問


how do i extract every 10th column from a matrix
using selectcolumn

6年以上 前 | 1 件の回答 | 0

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