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

From STX Wiki
Jump to navigationJump to search
m (1 revision: Initial import)
No edit summary
Line 1: Line 1:
{{DISPLAYTITLE:{{SUBPAGENAME}}}}
{{DISPLAYTITLE:{{SUBPAGENAME}}}}
=====atan=====
Compute the inverse tangent of the argument. The function is applied element-wise and the result has always the same type as the argument ''x''. The values of the result are in the range -&pi .. &pi
----
;Usage 1: '''<code>atan(<var>x</var>)</code>'''
:;<var>x</var>: a scalar, vector or matrix
;Result: The inverse tangent of ''x''.
----
;Usage 2: '''<code>atan(<var>y<var>, <var>x</var>)</code>'''
;Result: The inverse tangent of ''y / x''. This function can be used to compute the phase
----
;See also: [[Programmer_Guide/Command_Reference/EVAL/asin|asin]], [[Programmer_Guide/Command_Reference/EVAL/cos|cos]], [[Programmer_Guide/Command_Reference/EVAL/tan|tan]], [[Programmer_Guide/Command_Reference/EVAL/cr2p|cr2p]], [[Programmer_Guide/Command_Reference/EVAL/cr2phi|cr2phi]]


Inverse tangent.
[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]
 
=====Usage:=====
 
<code>atan(<var>x</var>)</code>
 
=====Function:=====
 
Compute the inverse tangent of <var>x</var>.
 
=====Result:=====
 
The inverse tangent of <var>x</var>.
 
=====Usage:=====
 
<code>atan(<var>a</var>, <var>b</var>)</code>
 
=====Function:=====
 
Uses the C++ function <code>atan2(a,b)</code> to compute the inverse tangent (<var>a</var> and <var>b</var> must have the same datatype).
 
=====Result:=====
 
The inverse tangent of <var>a</var><code>/</code><var>b</var> with the same type as <var>a</var>.

Revision as of 13:24, 4 April 2011

Compute the inverse tangent of the argument. The function is applied element-wise and the result has always the same type as the argument x. The values of the result are in the range -&pi .. &pi

Usage 1
atan(x)
x
a scalar, vector or matrix
Result
The inverse tangent of x.
Usage 2
atan(y, x)
Result
The inverse tangent of y / x. This function can be used to compute the phase
See also
asin, cos, tan, cr2p, cr2phi

<function list>

Retrieved from "https://mediawiki.kfs.oeaw.ac.at/stx/docs/wiki/index.php?title=Programmer_Guide/Command_Reference/EVAL/atan&oldid=2610"

Navigation menu

Personal tools