<div>
the sine and cosine functions from math.h take arguments in radians , so do this<br />
<br />
sin(theta*PI/180)<br />
<br />
theta ur angle in degrees and PI is a constant = value of PI( 3.1415.....) this is also available in math.h as M_PI<br />
<br />
hope this works
</div>


the sine and cosine functions from math.h take arguments in radians , so do this

sin(theta*PI/180)

theta ur angle in degrees and PI is a constant = value of PI( 3.1415.....) this is also available in math.h as M_PI

hope this works

<div>
ummm... but how is:<br />
<br />
sin(theta) = 3/5<br />
<br />
how do I find theta?
</div>


ummm... but how is:

sin(theta) = 3/5

how do I find theta?

<div>
Theta is your angle...<br />
<br />
sin of 45 degrees is...<br />
<br />
sin(45/180 * PI)<br />
<br />

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Theta is your angle...

sin of 45 degrees is...

sin(45/180 * PI)



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<div class="content wysiwyg-content">
i don't know radian, so how do i use sin() and cos() with degrees??<br />
<br />
can you help me with some code to display this:<br />
<br />
sin(45) = 0.50000<br />
cos(45) = 0.50000<br />
sin(0) &nbsp;= 0.00000<br />
cos(0) &nbsp;= 1.00000<br />
sin(90) = 1.00000<br />
cos(90) = 0.00000
</div>
</div>


i don't know radian, so how do i use sin() and cos() with degrees??

can you help me with some code to display this:

sin(45) = 0.50000
cos(45) = 0.50000
sin(0)  = 0.00000
cos(0)  = 1.00000
sin(90) = 1.00000
cos(90) = 0.00000

sine and cosine problem

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