Sin and Cos. how do i use them in C++
Author
ok i need to find the height of a qudralateral using only the measurements of the sides and the angles. some how i need to use sin and cos yet i;ve never used any of those type of equations in C++ is it possible? how? also i''ve never really used cos and sin on a calculator so i have no clue how to even setup the equation. all i know is sin and cos find the langth of the oppsite and the adjacent using the hypotenuse and the other given side.
And don't forget the angle is measured in radians. To convert degrees to radians, multiply it by Pi/180. To convert from radians to degrees multiply by the inverse (180/Pi).
EDIT: and if you are using C++, you should include not math.h
[edited by - YoshiN on November 17, 2003 1:59:52 PM]
EDIT: and if you are using C++, you should include not math.h
[edited by - YoshiN on November 17, 2003 1:59:52 PM]
quote:Original post by YoshiN
EDIT: and if you are using C++, you should include not math.h
Whats the difference?
quote:Original post by SpaceDude
Whats the difference?
math.h is a depreciated header. if you''re using c++ you should be using cmath (no .h)
-eldee
;another space monkey;
[ Forced Evolution Studios ]
Do NOT let Dr. Mario touch your genitals. He is not a real doctor!
quote:Original post by eldeequote:Original post by SpaceDude
Whats the difference?
math.h is a depreciated header. if you''re using c++ you should be using cmath (no .h)
Got any more info on that? I''m interested to know what the actual difference is...
quote:Original post by SpaceDudequote:Original post by eldeequote:Original post by SpaceDude
Whats the difference?
math.h is a depreciated header. if you''re using c++ you should be using cmath (no .h)
Got any more info on that? I''m interested to know what the actual difference is...
The difference is that cmath adds a few extra #defines and stuff. If you want specifics, just open cmath from your C++ compiler''s include folder. You''ll notice that it actually includes the math.h header.
"Skepticism.... that great rot of the intellect." - V.H.
Bah, what does HE know?
Albekerky Software
Actually, the differences are that <math.h> is deprecated and with <cmath> all symbols are under the std namespace.
http://www.cplusplus.com/doc/ansi/hfiles.html
[edited by - Alvaro on November 17, 2003 9:47:13 PM]
http://www.cplusplus.com/doc/ansi/hfiles.html
[edited by - Alvaro on November 17, 2003 9:47:13 PM]
Also, cmath overloads the functions so calling cos() with a float parameter actually calls cosf()
VERY useful for templates.
- Scott "me22" McMurray
( email/MSN me22@fastmail.ca ICQ 37213887 )
VERY useful for templates.
- Scott "me22" McMurray
( email/MSN me22@fastmail.ca ICQ 37213887 )
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