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D.2.3.4 absValue
Procedure from library general.lib (see general_lib).
- Usage:
- absValue(c); c int, number or poly
- Return:
- absValue(c); the absolute value of c
- Note:
- absValue(c)=c if c>=0; absValue=-c if c<=0.
So the function can be applied to any type, for which comparison
operators are defined.
Example:
| LIB "general.lib";
ring r1 = 0,x,dp;
absValue(-2002);
==> 2002
poly f=-4;
absValue(f);
==> 4
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