Description Usage Arguments Details Value
Gaussian elimination with partial pivoting.
1 | GE(A)
|
A |
An n by p matrix. n must be greater than or equal to p. |
This function performs Gaussian elimination to the input matrix and returns the locations of pivoting elements.
The output is a vector of length n.
idx |
A vector of length n. The first p elements are the indices of the pivoting elements, ordered accoridng to columns, and the rest n-p elements are the remaining indices from 1 to n. |
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