43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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int main(int num_arg, char **args)
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{
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double num_A, num_B, num_C;
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if (num_arg <= 1)
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{
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system("quadratic-tui"); // make sure it is in PATH along with "quadratic" bin
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}
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else
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{
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num_A = atof(args[1]);
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num_B = atof(args[2]);
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num_C = atof(args[3]);
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double radical = pow(num_B, 2) + (-4 * num_A * num_C);
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if (radical < 0.0)
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{
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// roots are complex
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double real_part = (-num_B) / (2 * num_A);
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double imaginary_part = sqrt(radical * -1.0) / (2 * num_A);
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printf("%g+%gi\t %g-%gi\n", real_part, imaginary_part, real_part, imaginary_part);
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}
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else
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{
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// roots are real
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double numerator_1 = (-num_B) + sqrt(radical);
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double numerator_2 = (-num_B) - sqrt(radical);
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double zero_1_ptr = numerator_1 / (2 * num_A);
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double zero_2_ptr = numerator_2 / (2 * num_A);
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printf("%g\t %g\n", zero_1_ptr, zero_2_ptr);
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};
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};
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return 0;
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};
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