input: Write a function to convert the given temperature from Celsius to Fahrenheit. The function should take a single argument representing the temperature in Celsius and return the equivalent temperature in Fahrenheit.
  def celsius_to_fahrenheit(celsius):
      fahrenheit = (celsius * 9/5) + 32
      return fahrenheit
  
  assert celsius_to_fahrenheit(0) == 32
  assert celsius_to_fahrenheit(100) == 212
  assert celsius_to_fahrenheit(-40) == -40
  assert celsius_to_fahrenheit(37) == 98.6
  assert celsius_to_fahrenheit(-273.15) == -459.67
output: def celsius_to_fahrenheit(celsius):
      fahrenheit = (celsius * 9/5) + 32
      return fahrenheit