How to use java math...

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Boki - 02 Dec 2005 07:09 GMT

Hi All,

When I call:

Math.sin( 1 )

it failed..

cannot find symbol
symbol : method sin(int)
location: class java.lang.Math

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IchBin - 02 Dec 2005 07:47 GMT

> Hi All,
>
[quoted text clipped - 7 lines]
> symbol : method sin(int)
> location: class java.lang.Math

You may, as a beginner, post these questions to c.l.j.help and not
c.l.j.programmer newsgroup.

You mean you call it like this

double doubleValue = Math.sin( 1 );

Its saying that it can not find the class java.lang.Math

If on windows, did you add Java Home install directory to your class path..

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Thanks in Advance...
IchBin, Pocono Lake, Pa, USA
http://weconsultants.servebeer.com/JHackerAppManager
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Nigel Wade - 02 Dec 2005 15:43 GMT

>> Hi All,
>>
[quoted text clipped - 16 lines]
>
> Its saying that it can not find the class java.lang.Math

Actually, it's not.

It's saying that it's found Math in java.lang.Math, but it can't find a method
called "sin" which takes an int as it's argument. This is to be expected
because there isn't one - the only method "sin" in the java.lang.Math API takes
a double.

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Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555

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klynn47@comcast.net - 02 Dec 2005 16:46 GMT

1, being an int, should be automatically promoted to a double. This
program works fine in 1.4.1_02

public class Test1 {

public static void main(String[] args) {
System.out.println(Math.sin(1));
}

}

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klynn47@comcast.net - 02 Dec 2005 12:07 GMT

Could you show the full code?

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Roedy Green - 02 Dec 2005 18:50 GMT

>When I call:
>
>Math.sin( 1 )
>
>it failed..

First, Math.sin wants a number in radians. It also wants a double. I
am puzzled though why the compiler was unwilling to promote an int to
a double automatically.

Show us you exact code.

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Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.

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How to use java math...

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