Main Program

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

void print_codes(void);

double decode_char(char code);

main()

{

char code1, code2, code3;

double R;

double c1, c2, c3;

int flag;

print_codes();

printf("\n\nEnter three codes. ");

code1 = getchar();

code2 = getchar();

code3 = getchar();

c1 = decode_char(code1);

c2 = decode_char(code2);

c3 = decode_char(code3);

if(c1 == -999.0 || c2 == -999.0 || c3 == -999.0)

printf("\n\n\tBad code - cannot compute R.\n");

else {

R = (10.0*c1 + c2)*pow(10.0, c3);

printf("\n\n\tResistance in ohms:\t%f\n", R);

}

return EXIT_SUCCESS;

}

This is program pg173.c.

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