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Scilab help >> Elementary Functions > or

or

logical or of the elements of an array

Calling Sequence

or(A), or(A,'*')
or(A,'r'), or(A,1)

or(A,'c'), or(A,2)

Description

or(A) gives the or of the elements of the boolean matrix A. or(A) is true (%t) iff at least one entry of A is %t.

or([]) returns %F.

y=or(A,'r') (or, equivalently, y=or(A,1)) is the rowwise or. It returns in each entry of the row vector y the or of the rows of x (The or is performed on the row index : y(j)= or(A(i,j),i=1,m)).

y=or(A,'c') (or, equivalently, y=or(A,2)) is the columnwise or. It returns in each entry of the column vector y the or of the columns of x (The or is performed on the column index: y(i)= or(A(i,j),j=1,n))).

Examples

or([%t %t %f])

See Also

  • or operator (|) — logical or operator
  • and — logical and of the elements of an array
  • not — (~) logical not
  • find — find indices of boolean vector or matrix true elements
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Last updated:
Wed Oct 05 12:09:40 CEST 2011