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The Maxima on-line user's manual

Algebra Calculator

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Signum

Function: signum (<x>) For numeric <x>, returns 0 if <x> is 0, otherwise returns -1 or +1 as <x> is less than or greater than 0, respectively.

f(x):=signum(cos(x));
plot2d(signum(cos(x)), [x,-10,10]);

If <x> is not numeric then a simplified but equivalent form is returned. For example, signum(-x) gives -signum(x).

(%o1)                                true
(%i2) 

Related Examples

signum

signum(-3.2);

Calculate

signum

signum(-0.1015);

Calculate

signum

signum(3.2);

Calculate

signum

signum(6+(3));

Calculate

signum

signum(3.2);

Calculate

signum

signum(3);

Calculate

signum

signum(0.56);

Calculate

signum

signum(0.729);

Calculate

signum-sin

f(x):=signum(sin(x));

Calculate

signum

signum(0.56);

Calculate