Programmer Guide/Command Reference/EVAL/sign: Difference between revisions

Revision as of 11:56, 4 April 2011

Compute the sign.

Usage

sign(x)

Result

The result r has the same type as the argument x.

x[i,j] is set to 1 if x[i,j]>=0 and to -1 if x[i,j]>=0

@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-=====sign=====
+Compute the sign.
-The sign of <var>x</var> (1 for <var>x</var>>=0, -1 for <var>x</var> < 0)
+;Usage: '''<code>sign(<var>x</var>)</code>'''
+:;<var>x</var>: a scalar, vector or matrix
+;Result: The result ''r'' has the same type as the argument ''x''.
+::<code>''x''[''i'',''j''] is set to 1 if ''x''[''i'',''j'']>=0 and to -1 if ''x''[''i'',''j'']>=0</code>
+;See also: [[Programmer_Guide/Command_Reference/EVAL/int|int]], [[Programmer_Guide/Command_Reference/EVAL/round|round]], [[Programmer_Guide/Command_Reference/EVAL/floor|floor]]
-=====Usage:=====
+[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]
-<code>sign(<var>x</var>)</code>