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CJPROD − CUTEr tool to form the matrix-vector product of a vector with the Jacobian of the constraints, or its transpose. |
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CALL CJPROD( N, M, GOTJ, JTRANS, X, V, LV, R, LR ) |
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The CJPROD subroutine forms the product of a vector with the Jacobian matrix, or with its transpose, of the constraint functions of the problem decoded into OUTSDIF.d at the point X. |
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The arguments of CPROD are as follows |
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N [in] - integer |
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the number of variables for the problem, |
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M [in] - integer |
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the total number of general constraints, |
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GOTJ [in] - logical |
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a logical variable which specifies whether the first derivatives of the groups and elements have already been set (GOTJ = .TRUE.) or if they should be computed (GOTJ = .FALSE.), |
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JTRANS [in] - logical |
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a logical variable which specifies whether the product should involve the Jacobian (JTRANS = .FALSE.) or its transpose (JTRANS = .TRUE.), |
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X [in] - real/double precision |
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when GOTJ = .FALSE., the derivatives will be evaluated at X. Otherwise X is not used, |
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V [in] - real/double precision |
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the vector for which the product is required, |
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LV [in] - integer |
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the actual declared dimension of V, |
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R [out] - real/double precision |
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the result of the matrix-vector product, |
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LR [in] - integer |
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the actual declared dimension of R. |