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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.

signum(0.56);

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(0);

Calculate

signum-solve

eq1:(x+3)*(x-1/2) = 0;

eq2:signum(x)-1 = 0;

solve([eq1,eq2],[x]);

Calculate

signum

a:signum(1);

Calculate

signum

signum(4);

Calculate

signum

signum(4);

Calculate

signum

signum(-1);

Calculate

signum

signum(-0.0006);

Calculate

signum-sin

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

Calculate

signum

signum(0.56);

Calculate

signum-solve

eq1:(x+3)*(x-1/2) = 0;

eq2:signum(x) = 1;

solve([eq1,eq2],[x]);

Calculate