Power Function In C

Power Function In C How To Best Utilize Power Function In C? 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How To Implement Static Variable In C? How To Implement Queue in C? How To Implement Circular Queue in C? What is Embedded C programming and how is it different? How To Best Utilize Power Function In C? Published on Sep 10,2019 33.4K Views edureka Bookmark Finding power of a number is a very common operation in programming logic. In this article we will understand how to write a program by using Power Function In C to calculate power of a number. Following pointers will be covered in this article,Logic For Power MultiplicationWriting a Custom Power FunctionPower Function in CLet us start with understanding how to write a program to calculate power of a number.Logic For Power Multiplication23 = 2*2*2 = 8To find the 2^3, you need to multiply 2 thrice. This can be simply achieved using for loop.For above example, base = 2, exponent = 3.for (exponent=3; exponent0; exponent--) { result = result * base; }Lets look at the C program implementing the same.Example #include stdio.h int main() { int base, exponent; int result = 1; printf(Enter a base number: ); scanf(%d, base); printf(Enter an exponent: ); scanf(%d, exponent); for (exponent; exponent0; exponent--) { result = result * base; } printf(Answer = %lld, result); return 0; }Output:Moving On with this article on Power Function In CWriting a Custom Power FunctionYou can also create a function to calculate the power which you can call anytime you want to calculate the power of any integer.int power(int base, int exponent) { int result=1; for (exponent; exponent0; exponent--) { result = result * base; } return result; }Lets look at the complete code how to use this function.Example#include stdio.h int power(int base, int exponent){ int result=1; for(exponent; exponent0; exponent--){ result = result * base; } return result; } int main() { int base, exponent; printf(Enter a base number: ); scanf(%d, base); printf(Enter an exponent: ); scanf(%d, exponent); int res = power(base, exponent); printf(Answer = %lld, res); return 0; }Output:This technique only works if the exponent is a positive integer. If you want to find the power of a number where the exponent is a real number, you need to use pow() function.Moving On with this article on Power Function In CPower Function in CThe pow() function is used to find the power of a given number.It returns x raised to the power of y(i.e. xy).The pow() function is present in math.h header file. So, you need to import math.h header file in the program to use pow() function.#include math.hThe declaration of the power function is as follows:Declaration: double pow(double base, double exponent);The pow() function takes two arguments (i.e. base exponent) returns the result of raising base to the power exponent.Calling the power function:pow(2.4, 3.2)where 2.4 is the base 3.2 is the exponentLets quickly look at an example to understand how to use pow() function in a program.Example:#include stdio.h #include math.h int main() { double base, expo, res; printf(Enter a base number: ); scanf(%lf, base); printf(Enter an exponent: ); scanf(%lf, expo); res = pow(base, expo); printf(%.1lf^%.1lf = %.2lf, base, expo, res); return 0; }OutputNow, after executing the above programs you would have understood how to use power function in C. I hope this article was informative and added value to you.Stay tuned for more tutorials on similar topics.You may also checkout our training program to get in-depth knowledge on jQuery along with its various applications, you canenroll herefor live online training with 24/7 support and lifetime access.Implement the above code with different strings and modifications. Now, we have a good understanding of all key concepts related to the pointer.Got a question for us? Mention them in the comments section of this blog and we will get back to you.Recommended blogs for you How To Become A DevOps Engineer? | DevOps Engineer Road Map Read Article Why Edureka’s Pedagogy results in a steep learning curve Read Article Load Testing using JMeter : How to Measure Performance in CMD Read Article Data Analyst Salary : How much Does a Data Analyst Earn? Read Article How to Install Appium: Step- by-Step Complete Tutorial Read Article How to Become a Certified Scrum Product Owner? 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