input: Write a function to calculate the square root of a user-defined positive number. The function should use the math module to compute the square root and print the result.
  assert sqrt_calculator(100)=='Square root of 100 is 10.0'
  assert sqrt_calculator(144)=='Square root of 144 is 12.0'
  assert sqrt_calculator(225)=='Square root of 225 is 15.0'
  assert sqrt_calculator(2)=='Square root of 2 is 1.4142135623730951'
  assert sqrt_calculator(1.44)=='Square root of 1.44 is 1.2'
output: import math
  
  def sqrt_calculator(num):
      return f'Square root of {num} is {math.sqrt(num)}'