acos() - Mathematical Function
How is Mathematical Function "acos()" used in C++?
How to find the arc cosine value of an argument using c++?
Explanation
acos() is a Mathematical Function that returns the arc cosine value for the give argument. The argument value must be in the range -1 to 1, otherwise a domain error is triggered.
float acos ( float arg );
double acos ( double arg );
long double acos ( long double arg );
Result :
Enter an argument between -1 and 1
.2
The arc cosine value is::1.36944
In the above example acos() is used to find the arc cosine value of ".2"
Syntax to find Arc Cosine Value:
float acos ( float arg );
double acos ( double arg );
long double acos ( long double arg );
Example :
| #include <iostream.h> #include <cmath.h> int main() { double ar, res; cout << "Enter an argument between -1 and 1\n"; cin >> ar; res = acos(ar); cout << "The arc cosine value is::" << res << endl; return 0; } |
Result :
Enter an argument between -1 and 1
.2
The arc cosine value is::1.36944
In the above example acos() is used to find the arc cosine value of ".2"
