GBEQU: computes row and column scalings intended to equilibrate an M-by-N band matrix A and reduce its condition number. R returns the row scale factors and C the column scale factors, chosen to try to make the largest element in each row and column of the matrix B with elements B(i,j)=R(i)*A(i,j)*C(j) have absolute value 1. R(i) and C(j) are restricted to be between SMLNUM = smallest safe number and BIGNUM = largest safe number. Use of these scaling factors is not guaranteed to reduce the condition number of A but works well in practice.
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GBEQU: computes row and column scalings intended to equilibrate an M-by-N band matrix A and reduce its condition number. R returns the row scale factors and C the column scale factors, chosen to try to make the largest element in each row and column of the matrix B with elements B(i,j)=R(i)*A(i,j)*C(j) have absolute value 1. R(i) and C(j) are restricted to be between SMLNUM = smallest safe number and BIGNUM = largest safe number. Use of these scaling factors is not guaranteed to reduce the condition number of A but works well in practice.
◆ la_cgbequ()
| la_lapack::gbequ::la_cgbequ |
◆ la_dgbequ()
| la_lapack::gbequ::la_dgbequ |
◆ la_qgbequ()
| la_lapack::gbequ::la_qgbequ |
◆ la_sgbequ()
| la_lapack::gbequ::la_sgbequ |
◆ la_wgbequ()
| la_lapack::gbequ::la_wgbequ |
◆ la_zgbequ()
| la_lapack::gbequ::la_zgbequ |
The documentation for this interface was generated from the following file:
1.13.2