java trigonometry functions

[Jeremy Watts]

hi,

does java have the trig functions 'sec, cosec, cot' and also their inverses
'arcsec, arcosec & arcot' ?

i am paricularly interested in 'arc cot'

thanks
jeremy watts

[voorth]

sec z = 1/cos z
csc z = 1/sin z
cot z = 1/tan z

asec z = acos 1/z
acsc z = acos 1/z
acot z = atan 1/z

Just roll your own, I suppose....

[Lew]

<http://java.sun.com/javase/6/docs/api/java/lang/Math.html>
gives you the core functions.

--
Lew

[Daniel Pitts]

Google for Java Math.
--
Daniel Pitts' Tech Blog: <http://virtualinfinity.net/wordpress/>

[Roedy Green]

On Mon, 11 Feb 2008 12:35:06 GMT, "Jeremy Watts"
<jwatt...@hotmail.com> wrote, quoted or indirectly quoted someone
who said :

>does java have the trig functions 'sec, cosec, cot' and also their inverses
>'arcsec, arcosec & arcot' ?
>
>i am paricularly interested in 'arc cot'

see http://mindprod.com/jgloss/trigonometry.html
--

Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

[Andrew Morrow]

"Jeremy Watts" <jwatt...@hotmail.com> wrote in message
news:_hXrj.3611$v04....@newsfe3-gui.ntli.net...

In case it was not obvious:

For something like arcosec(value), you have to recognize that "a" ashould be
a value that is *not* between -1 and 1 . What you do is to take and then
call java.lang.Math.asin(1.0/a). Same goes for the arcsec / acos pair and
arccot / atan pair.

http://en.wikipedia.org/wiki/Trigonometric_function

http://java.sun.com/javase/6/docs/api/java/lang/Math.html

Just remember to never compute 1.0/theta and you should be OK.

Andrew