Programmer Guide/Command Reference/EVAL/ncol: Difference between revisions
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<pre> | <pre> | ||
#matrix := eval init(100,10,0) | #matrix := eval init(100,10,0) | ||
conlog 'number of columns of $#matrix: $(eval ncol($#matrix)' | conlog 'number of columns of $#matrix: $(eval ncol($#matrix))' | ||
// the attribute !ncol returns the same value: | // the attribute !ncol returns the same value: | ||
conlog 'number of columns of $#matrix: $#matrix[!ncol]' | conlog 'number of columns of $#matrix: $#matrix[!ncol]' | ||
Revision as of 10:11, 4 April 2011
Returns the number of columns of the argument x.
- Usage
ncol(x)
- Result
- The result of this function is the number of columns of x. If x is a scalar or a vector, the result is 1. The function cols(x) can be used as alias for ncol.
- Example
#matrix := eval init(100,10,0) conlog 'number of columns of $#matrix: $(eval ncol($#matrix))' // the attribute !ncol returns the same value: conlog 'number of columns of $#matrix: $#matrix[!ncol]'
- See also
- nrow
