How to constrain the solution to be positive? - 未名空间MITBBS历史存档

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How to constrain the solution to be positive?

How to constrain the solution to be positive?# Computation - 科学计算

s*t2002-07-29 07:07

1 楼

If I am solving linear equations Ax=b, where A is a large
sparse matrix, by use of algorithm LSQR, how can I constrain
the solutions for some x_i to be positive?
Anyone knows?

g*i2002-07-29 07:07

2 楼

that will be a problem with constraints

【在 s*****t 的大作中提到】

: If I am solving linear equations Ax=b, where A is a large
: sparse matrix, by use of algorithm LSQR, how can I constrain
: the solutions for some x_i to be positive?
: Anyone knows?