NX Nastran DMAP Programmer's Guide - Kxcad.net

Option P1 = 1
Extract a block(s) of columns from a matrix.
Format:
MATMOD I1,,,,,/O1,/1/STARTCOL/ENDCOL/COLINC $
Input Data Block:
I1 Any matrix. (Real or complex).
Output Data Block:
O1 Column vector containing column P2 of I1.
Parameter:
STARTCOL Input-integer. Starting column number to extract from I1.
ENDCOL Input-integer. Ending column number to extract from I1
COLINC Input-integer. Column increment. Extract every COLINC'th
column between STARTCOL and ENDCOL.
Remarks:
1. If ENDCOL is zero then ENDCOL=STARTCOL.
MATMOD
Matrix modification
2. If COLINC is zero then every column between STARTCOL and ENDCOL is
extracted.
Examples:
1. Extract the seventh column from A and call it A7.
MATMOD A,,,,,/A7, /1/7 $
2. Extract the third, fourth, and fifth columns from A.
MATMOD A,,,,,/A345, /1/3/3 $
Option P1 = 2
Filter small magnitude terms of a matrix.
Format:
MATMOD I1,,,,,/O1,/2/PURGE///FILTER $
Input Data Block:
I1 Any matrix. (Real or complex).
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