C pow() function
C pow() function - Compute power
Syntax:
double pow(double x, double y)
The pow() function is used to calculate the value of x to the power of y.
Parameters:
Name | Description | Required /Optional |
---|---|---|
x | Floating point base value. | Required |
y | Floating point power value. | Required |
Return value from pow()
- Returns the value 1 if y is 0.
- Returns 0 if x is 0 and y is negative.
- Returns 0 if both x and y are 0, or if x is negative and y is not an integer.
Example: pow() function
The following example shows the usage of pow() function.
#include <math.h>
#include <stdio.h>
int main(void)
{
double x, y, z;
x = 2.0;
y = 4.0;
z = pow(x,y);
printf("%lf to the power of %lf is %lf\n", x, y, z);
x = 2.2;
y = 3.2;
z = pow(x,y);
printf("\n%lf to the power of %lf is %lf\n", x, y, z);
}
Output:
2.000000 to the power of 4.000000 is 16.000000 2.200000 to the power of 3.200000 is 12.466731
C Programming Code Editor:
Previous C Programming: C modf()
Next C Programming: C sqrt()
C Programming: Tips of the Day
What's the point of const pointers?
const is a tool which you should use in pursuit of a very important C++ concept:
Find bugs at compile-time, rather than run-time, by getting the compiler to enforce what you mean.
Even though it does not change the functionality, adding const generates a compiler error when you're doing things you didn't mean to do. Imagine the following typo:
void foo(int* ptr) { ptr = 0;// oops, I meant *ptr = 0 }
If you use int* const, this would generate a compiler error because you're changing the value to ptr. Adding restrictions via syntax is a good thing in general. Just don't take it too far -- the example you gave is a case where most people don't bother using const.
Ref : https://bit.ly/33Cdn3Q
- Weekly Trends
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
- JavaScript functions Exercises
- Python Tutorial
- Python Array Exercises
- SQL Cross Join
- C# Sharp Array Exercises