Node:Comparison Ops, Next:Boolean Expressions, Previous:Arithmetic Ops, Up:Expressions
Comparison operators compare numeric values for relationships such as equality. They are written using relational operators.
All of Octave's comparison operators return a value of 1 if the
comparison is true, or 0 if it is false. For matrix values, they all
work on an element-by-element basis. For example,
[1, 2; 3, 4] == [1, 3; 2, 4] => 1 0 0 1
If one operand is a scalar and the other is a matrix, the scalar is compared to each element of the matrix in turn, and the result is the same size as the matrix.
x < y
x <= y
x == y
x >= y
x > y
x != y
x ~= y
x <> y
String comparisons may also be performed with the strcmp
function, not with the comparison operators listed above.
See Strings.