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D.2.5.6 sparsemat
Procedure from library random.lib (see section random_lib).
- Usage:
sparsemat(n,m[,p,b]); n,m,p,b integers
- Return:
nxm integer matrix, p percent of the entries are 0, the remaining
are random coefficients >=1 and <= b; [defaults: (p,b) = (75,1)]
Example:
LIB "random.lib";
sparsemat(5,5);"";
→ 0,0,0,0,0,
→ 0,1,0,0,1,
→ 0,0,0,1,0,
→ 0,1,0,0,0,
→ 0,1,0,1,1
→
sparsemat(5,5,95);"";
→ 1,0,0,0,0,
→ 0,0,0,0,0,
→ 0,0,0,0,0,
→ 0,0,0,0,0,
→ 0,0,0,1,0
→
sparsemat(5,5,5);"";
→ 1,1,1,1,1,
→ 1,1,1,1,1,
→ 1,1,1,1,1,
→ 1,0,1,1,1,
→ 1,1,1,1,0
→
sparsemat(5,5,50,100);
→ 0,17,24,80,0,
→ 0,13,30,45,0,
→ 19,0,0,0,0,
→ 93,0,23,0,69,
→ 0,88,44,31,0
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