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- function sin() and tan() return wrong va
function sin() and tan() return wrong values
so i include math.h inorder to get sin and tan functions
so i use them in my code but i figured out that those functions don't return accurate values. i dont really care if they are unaccurate by like 0.1% and stuff like that but this functions return very unaccurate values. lets say i have this code:
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
cout << tan(5) << " , " << sin(30) << endl;
return 0;
}
so my program outputs this:( -3.38052 , -0.988032).
what its supose to output is this( 0.08748 , 0.5).
i suspect that floating points are never accurate and you need to read a whole article do understand how they work.I don't have strength to do that all i want is to use the sin and tan functions.is there some sort of library that returns more accurate values?
so i use them in my code but i figured out that those functions don't return accurate values. i dont really care if they are unaccurate by like 0.1% and stuff like that but this functions return very unaccurate values. lets say i have this code:
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
cout << tan(5) << " , " << sin(30) << endl;
return 0;
}
so my program outputs this:( -3.38052 , -0.988032).
what its supose to output is this( 0.08748 , 0.5).
i suspect that floating points are never accurate and you need to read a whole article do understand how they work.I don't have strength to do that all i want is to use the sin and tan functions.is there some sort of library that returns more accurate values?
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