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FLETCHER-REEVES | |
Uses FLETCHER-REEVES instead of POLAK-RIBIERE when using Conjugate Gradients | |
This optional keyword cannot be repeated and it expects precisely one logical. | |
The lone keyword behaves as a switch to .TRUE. | |
Default value: .FALSE. |
MAX_STEEP_STEPS {INTEGER} | |
Maximum number of steepest descent steps before starting the conjugate gradients optimization. | |
This optional keyword cannot be repeated and it expects precisely one integer. | |
Default value: 0 |
RESTART_LIMIT {REAL} | |
Cosine of the angle between two consecutive searching directions. If the angle during a CG optimization is less than the one corresponding to to the RESTART_LIMIT the CG is reset and one step of steepest descent is performed. | |
This optional keyword cannot be repeated and it expects precisely one real. | |
Default value: 9.00000000E-01 |
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