NX Nastran DMAP Programmer's Guide - Kxcad.net

ADD Matrix add
Computes [ X]
= α[ A]
⊕ β[ B]
where α and β are scalar multipliers
( ⊕ can be the +, *, ÷ or overwrite operators)
.
Format:
ADD A,B/X/ALPHA/BETA/IOPT $
Input Data Blocks:
A Any matrix (real or complex).
B Any matrix (real or complex).
Output Data Block:
X Matrix.
Parameters:
Remarks:
1. [A] and/or [B] may be purged, in which case the corresponding term in the
matrix sum will be assumed null. The input data blocks must be unique.
ADD
Matrix add
ALPHA Input-complex single precision-default = (1.0,0.0). This is α, the scalar
multiplier for [A].
BETA Input-complex single precision-default = (1.0,0.0). This is β, the scalar
multiplier for [B].
IOPT Input-integer-default = 0. This chooses the operator
IOPT Operation
0
1
2
3
+ , add
* , multiply
÷
x ij
, divide
⎧
⎨
⎩
=
=
⎫
⎬
⎭
αAij if Bij = 0
βBij if Bij ≠ 0
if Aij or Bij = 0, then Xij = 0
in xij = αAij ⊕ βBij 2. The type (complex or real and single or double precision) of [X] is the maximum
of the types of [A], [B], α, and β. The size of [X] is the size of [A] if [A] is present.
Otherwise, it is the size of [B].
⊕
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