http://learn.cemetech.net/index.php?title=TI-BASIC:Arcosh&feed=atom&action=historyTI-BASIC:Arcosh - Revision history2024-03-28T17:36:08ZRevision history for this page on the wikiMediaWiki 1.34.0http://learn.cemetech.net/index.php?title=TI-BASIC:Arcosh&diff=965&oldid=prevMaintenance script: Initial automated import2016-02-24T18:27:40Z<p>Initial automated import</p>
<p><b>New page</b></p><div>{{Template:TI-BASIC:Command<br />
|picture=COSHINVERSE.GIF<br />
|summary=Calculates the inverse hyperbolic cosine of a value.<br />
|syntax=coshֿ¹(''value'')<br />
|location=The coshֿ¹( command can only be found in the catalog. Press:<br />
# 2nd CATALOG to access the command catalog.<br />
# C to skip to commands starting with C.<br />
# Scroll down and select coshֿ¹(<br />
|compatibility=TI-83/84/+/SE<br />
|size=1 byte<br />
}}<br />
<br />
The coshֿ¹( function gives the inverse hyperbolic cosine of a value. coshֿ¹(x) is the number y such that x = cosh(y).<br />
<br />
Although coshֿ¹(x) can be defined for all real and complex numbers, it assumes real values only for x≥1. Since hyperbolic functions in the Z80 calculators are restricted only to real values, [[TI-BASIC:Errors#domain|ERR:DOMAIN]] is thrown when x<1.<br />
<br />
The coshֿ¹( command also works for lists.<br />
<br />
coshֿ¹(1)<br />
0<br />
coshֿ¹({2,3})<br />
{1.316957897 1.762747174}<br />
<br />
= Error Conditions =<br />
<br />
* '''[[TI-BASIC:Errors#domain|ERR:DOMAIN]]''' when taking the inverse cosh of a number less than 1.<br />
<br />
= Related Commands =<br />
<br />
* [[TI-BASIC:Sinh|Sinh(]]<br />
* [[TI-BASIC:Arsinh|sinhֿ¹(]]<br />
* [[TI-BASIC:Cosh|Cosh(]]<br />
* [[TI-BASIC:Tanh|Tanh(]]<br />
* [[TI-BASIC:Artanh|tanhֿ¹(]][[Category:TI-BASIC]]<br />
[[Category:TIBD]]</div>Maintenance script