array-in-a-matrix/quadratic
1
0
Fork 0
Code Issues 2 Pull requests Projects Releases 4 Wiki Activity

commandline parameters support

Browse source
This commit is contained in:
array-in-a-matrix 2021-11-05 17:02:17 -04:00
parent 6de5afde59
commit 51a1738e18
1 changed files with 27 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

53
quadratic.c
View file

@ -1,53 +1,54 @@
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
int main(int num_arg, char** args)
int main(int num_arg, char **args)
{
system("clear");
printf("\n ~~ Quadratic Calculator ~~\n");
printf(" ̲ ̲ ̲ ̲ ̲ ̲\n");
printf(" ̲-̲b̲±̲√̲b̲̲²̲̲-̲4̲a̲c̲\n");
printf(" 2a\n\n");
printf("there are %d arguments\n", num_arg);
for(int i=0; i < num_arg; ++i){
printf("%s\n", args[i]);
};
double num_A, num_B, num_C;
printf("Please enter the value for \"a\":\n");
scanf("%lf", &num_A);
printf("Please enter the value for \"b\":\n");
scanf("%lf", &num_B);
printf("Please enter the value for \"c\":\n");
scanf("%lf", &num_C);
if (num_arg <= 1)
{
system("clear");
printf("\n ~~ Quadratic Calculator ~~\n");
printf(" ̲ ̲ ̲ ̲ ̲ ̲\n");
printf(" ̲-̲b̲±̲√̲b̲̲²̲̲-̲4̲a̲c̲\n");
printf(" 2a\n\n");
printf("Please enter the value for \"a\":\n");
scanf("%lf", &num_A);
printf("Please enter the value for \"b\":\n");
scanf("%lf", &num_B);
printf("Please enter the value for \"c\":\n");
scanf("%lf", &num_C);
printf("\n");
}
else
{
num_A = atof(args[1]);
num_B = atof(args[2]);
num_C = atof(args[3]);
};
double radical = pow(num_B, 2) + (-4 * num_A * num_C);
printf("\nUnder the radical: %f\n", radical);
if (radical < 0.0)
{
// roots are complex
printf("Roots are complex.\n");
double real_part = (-num_B) / (2 * num_A);
double imaginary_part = sqrt(radical * -1.0) / (2 * num_A);
printf("The zeros are: %f+%fi and %f-%fi.\n", real_part, imaginary_part, real_part, imaginary_part);
printf("%f+%fi %f-%fi\n", real_part, imaginary_part, real_part, imaginary_part);
}
else
{
// roots are real
printf("Roots are real.\n");
double numerator_1 = (-num_B) + sqrt(radical);
double numerator_2 = (-num_B) - sqrt(radical);
double zero_1_ptr = numerator_1 / (2 * num_A);
double zero_2_ptr = numerator_2 / (2 * num_A);
printf("The zeros are: %f and %f.\n", zero_1_ptr, zero_2_ptr);
printf("%f %f\n", zero_1_ptr, zero_2_ptr);
};
return 0;
};