Trigonometry problem

This is a discussion on Trigonometry problem within the C++ Programming forums, part of the General Programming Boards category; Hello! I'm having a small problem with doing calculations with the sin(), cos(), and tan() functions. When I output the ...

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    Trigonometry problem

    Hello!

    I'm having a small problem with doing calculations with the sin(), cos(), and tan() functions. When I output the value of sin(45), I expect that I get the value of 0.70710678118654752440084436210485, but I get something else. Same is with the tan() and cos() functions. Either I'm not using the right type of functions or I'm supposed to convert some numbers to radians, or something.

    What is it?
    Last edited by McYaballow; 07-09-2004 at 02:08 AM.

  2. #2
    C++ Developer XSquared's Avatar
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    You have to convert to radians first. To do that, you just need to multiply the number by M_PI / 180.
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    Thanks, i'll try that.

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