C Tutorial
#include<math.h> double sqrt(double)
#include<stdio.h> #include <math.h> void main () { int number; double sqrt_val=0; printf("\nEnter number: "); scanf("%d", &number); sqrt_val = sqrt((double)number); printf("Square root of %d: %lf\n", number, sqrt_val); }Output:
$ cc square-root.c -o a.out -lm $ ./a.out Enter number: 4 Square root of 4: 2.000000 $ ./a.out Enter number: 16 Square root of 16: 4.000000 $ ./a.out Enter number: 36 Square root of 36: 6.000000
#include <stdio.h> #include <math.h> void main () { float number; double sqrt_val=0; printf("\nEnter number: "); scanf("%f", &number); sqrt_val = sqrt((double)number); printf("Square root of %f: %lf\n", number, sqrt_val); }Output:
$ cc square-root.c -o a.out -lm $ ./a.out Enter number: 4.4 Square root of 4.400000: 2.097618 $ ./a.out Enter number: 26 Square root of 26.000000: 5.099020
#include <stdio.h> #include <math.h> void main () { double number; double sqrt_val=0; printf("\nEnter number: "); scanf("%lf", &number); sqrt_val = sqrt(number); printf("Square root of %lf: %lf\n", number, sqrt_val); } ~Output:
$ cc square-root.c -o a.out -lm $ ./a.out Enter number: 34565.78 Square root of 34565.780000: 185.918746 $ ./a.out Enter number: 89242948294.23232 Square root of 89242948294.232315: 298735.582571
C Tutorial
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