https://docs.vultr.com/clang/s....tandard-library/math
inverse hyperbolic cosine The inverse hyperbolic cosine, written as arcosh(x) or acosh(x), is the inverse function of the hyperbolic cosine. It is defined for x ≥ 1 and can be calculated using the formula:
acosh
(
𝑥
)
=
ln
(
𝑥
+
𝑥
2
−
1
)
acosh(x)=ln(x+
x
2
−1
)
In C, you can use acosh() from math.h, and in Java, you can use Math.acosh()
https://docs.vultr.com/clang/s....tandard-library/math
math.h atan2 In C, the atan2(y, x) function from math.h computes the arc tangent of y/x, considering the signs of both arguments to determine the correct quadrant.
In Java, you can use Math.atan2(y, x), which works the same way. It returns the angle in radians between the positive x-axis and the point (x, y).
https://docs.vultr.com/clang/s....tandard-library/math
round up in c In C, you can round up a number using the ceil() function from the math.h library. It returns the smallest integer greater than or equal to the given number.
Example in C:
c
Copy
Edit
#include <stdio.h>
#include <math.h>
int main() {
double num = 4.3;
double roundedUp = ceil(num);
printf("Rounded up: %.0f
", roundedUp); // Output: 5
return 0;
}
Here, ceil(4.3) returns 5 because it always rounds up to the next whole number
