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Old   September 11, 2003, 12:16
Default help C++
  #1
flow
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Hi,

I am new about C++. I want to calculate some functions in my programme, such as sin, cos, power, log, etc. Where can I find their expression in C++? Thanks!

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Old   September 11, 2003, 12:39
Default Re: help C++
  #2
cfd dude
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You can find intrinsic functions (sin, min, exp, etc.) in the various include files available with the compiler you're using. Such as:

#include <math.h>
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Old   September 11, 2003, 12:41
Default once more
  #3
cfd dude
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oops - The symbols I typed didn't show up last time. More explicitly, the syntax is:

#include (less than sign)math.h(greater than sign)

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Old   September 11, 2003, 12:46
Default Re: once more
  #4
flow
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Thank you very much.

I have good fortran knowledge. In #include <math.h>, how to express squared or power calculation?
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Old   September 11, 2003, 14:17
Default Re: once more
  #5
Maciej Matyka
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Hi, an example #include <cmath> #include <iostream> int main(void) { double a=10; // take e^a std::cout << exp(a) << std::endl; // take a^10 std::cout << pow(a,10) << std::endl; // take sinus(a) std::cout << sin(a) << std::endl; } M. http://panoramix.ift.uni.wroc.pl/~maq

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Old   September 11, 2003, 14:47
Default Re: once more
  #6
flow
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Thank you very much.

I just try it. It is clear.

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