C-Study(1) Translation: C-Study(1)

Learning C => Floating Point Numbers and Variables#

float#

With the float type, we can now declare variables to store decimal numbers, whereas before we only had int for integer types.

To print a float value using printf, we need to use "%f". In this example.c, "%.2f" is used to accurately display the value with two decimal places.

scanf()#

Additionally, we use the scanf() function to read input from the keyboard.

#include <stdio.h>

int main(void) {
  float weight; // weight
  float value;  // gold

  printf("Are you worth your weight in platinum?\n");
  printf("Let's check it out.\n");
  printf("Please enter your weight in pounds: ");

  // reads input
  scanf("%f", &weight);

  value = 1700.0 * weight * 14.5833;
  printf("Your weight in platinum is worth $%.2f.\n", value);
  printf("You are easily worth that! If platinum prices drop,\n");
  printf("eat more to maintain your value.\n");

  getchar();
  getchar();

  return 0;
}

(There shouldn't be any problems, right? ^^)

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