Write a function that takes one argument-F for Fahrenheit-and computes the result of the following equation (converting the temperature to Celsius).

C = (F – 32) * (5 / 9)

______ tempConverter(float ________) {
  _____ _______ = ______________
  _____________________________
}

Answer:

void setup() {
  float temp = tempConverter(50);
  println(temp);
}

float tempConverter(float farenheit) {
  float celsius = (farenheit - 32) * (5.0/9.0);
  return celsius;
}
  • Aaron

    Quick question here -

    In the “Answer,” shouldn’t it read:

    float celsius = (farenheit – 32) * (5.0/9.0);

    I could be wrong, but just wanted to check. Thanks!

  • admin

    Yup, that’s right! Thanks, fixed now.

  • http://www.mkdesigns.net/ Mary

    I was tripped-up by the fractions needing to have a decimal point to work. Without the decimal point
    on the 5/9 equation I was returning a 0.

    I guess I should include a decimal on all floats just to be safe?

  • http://www.learningprocessing.com Daniel Shiffman

    Indeed, Processing will assume numbers are integers and you want an integer back unless you indicate a float with the decimal value (even if it is “point zero”).

  • Rhys Harris09

    This had me stumped for ages! In France with no Internet, now in a @Cafe and have found the answer! Phew! Thanks!