input: Write a function to convert Celsius to Fahrenheit. The function should take a temperature in Celsius as input and return the equivalent temperature in Fahrenheit rounded to 2 decimal places.
  assert celsiusToFahrenheit(0)==32.00
  assert celsiusToFahrenheit(100)==212.00
  assert celsiusToFahrenheit(-40)==-40.00
  assert celsiusToFahrenheit(25)==77.00
output: def celsiusToFahrenheit(celsius):
      return round((celsius * 9/5) + 32, 2)