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| Purpose |
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Change a coefficient in the right-hand-side vector.
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| Synopsis |
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int QSchange_rhscoef (QSprob p, int indx, double coef)
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| Arguments |
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p |
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a handle to an initialized problem. |
indx |
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the index of the row whose right-hand-side coefficient will be changed. |
coef |
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the new value of the coefficient. |
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| Returns |
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A zero value if the function terminated correctly, and a non-zero value if an error occurred.
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| Description |
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Use this function to change a single coefficient in the right-hand-side vector; it can be used to modify an existing non-zero coefficient or to add a new non-zero coefficient to the right-hand-side vector. Note that the function assumes that the row (constraint) exists; use QSnew_row if the coefficient introduces a new row.
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| Example |
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/* Change the right-hand-side coefficient in row 1 to 7.1 */
int rval = 0;
rval = QSchange_rhscoef (p, 1, 7.1);
if (rval) {
fprintf (stderr,
"Could not change rhs value, error code %d\n", rval);
}
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