Experiment 2-2-4 Calculating the piecewise function [2] (10 points)

This question requires calculating f(x)the value of the following piecewise function :
$$f(x)=\{\begin{array}{ll}{x}^{0.5}& \text{x>=0}\\ (x+1{)}^2+2x+1/x& \text{x<0}\end{array}$$

Note: It can be included in the header file math.h, and call the sqrtfunction to find the square root, and call the powfunction to find the exponentiation.

Input format:

The input gives the real number x in one line.

Output format:

“f(x) = result”Output in the format in one line , in which x and result both retain two decimal places.

Input example 1:

10

Output example 1:

f(10.00) = 3.16

Input example 2:

0.5

Output example 2:

f(-0.50) = -2.75

Code:

# include <stdio.h>
# include <stdlib.h>
# include <math.h>

int main(){
    
    
    double x,result;
    scanf("%lf",&x);
    if (x >= 0) result = sqrt(x);
    else result = pow(x+1,2) + 2 * x + 1.0 / x;
    printf("f(%.2lf) = %.2lf",x,result);
    return 0;
}

Submit screenshot:

Problem-solving ideas:

It is mainly math.hthe use of the library. Importing this library can use some packaged ready-made mathematical formulas, common ones sqrt, powetc.