NX Nastran DMAP Programmer's Guide - Kxcad.net

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ADD5
Matrix add
DELTAD Input-complex double precision-default = (1.0D0,0.0D0). This is the
scalar multiplier for [C].
EPSLND Input-complex double precision-default = (1.0D0,0.0D0). This is the
scalar multiplier for [E].
Remarks:
1. Any of the matrices may be purged, in which case the corresponding term in the
matrix sum will be assumed null. The input data blocks must be unique.
2. The type (complex or real) of [X] is maximum of the types of A, B, C, D, and E. If
the imaginary parts of any parameter are nonzero, then X will be complex. The
precision of [X] is double for short-word machines and single for long-word
machinesADD5 is more efficient than ADD for sparse matrices.
3. If the input matrices are incompatible, then the User Fatal Message 5423
“ATTEMPT TO ADD INCOMPATIBLE MATRICES” is issued.
4. If any of the scalar multipliers are specified as constants and their imaginary part
is zero; e.g., “(5.,0.)”, then they may be alternately specified as real constants;
e.g., “5.” See Example 2 below.
5. If any of the scalar single precision multipliers are specified as constants and their
imaginary part is zero; e.g., (5.,0.), then they may be alternately specified as real
constants; e.g., 5. See Example 2. This alternate specification is not allowed for
the double precision multipliers and constant double precision values must be
entered in full: e.g., (2.0D0, 0.0D0).
6. If ALPHAD, BETAD, GAMMAD, DELTAD, or EPSLND is non-zero then the
corresponding single precision parameter will be ignored.
Examples:
1. Compute
IOMEGA=CMPLX(0.,OMEGA)
OMEGSQ=IOMEGA**2
ADD5 MDD,BDD,KDD,,/DDD/OMEGSQ/IOMEGA $
2. Multiply [MAA] by 5.0
ADD5 MAA,,,,/MAA5/(5.0,0.0) $
or
ADD5 MAA,,,,/MAA5/5.0 $
3. Scale A by a large number. The largest element in A is 1.0.
TYPE PARM,,CD,SCALER=(1.D40,0.0D0) $
ADD5 A,,,,/ASCALED//////SCALER $