Using if statement to call a function in Python

Question

Convert from Degree to radian and backward

def degree_to_radian(in_degree):
    angles_in_radian=(in_degree*pi)/180
    return(angles_in_radian)

def radian_to_degree(in_radian):
    angles_in_degree=in_radian*180/pi
    return(angles_in_degree)

I am required to write a program angle converter(in num, in type)

if in_type is degree then it should use the first function and if radian the second function and I shoud get somthing like this when running the program

angle_converter (2.5 , 'Degree ')

Degree 2.5 is equal to 0.04363323129985824 Radian

angle_converter (2.5 , 'Radian ')

Radian 2.5 is equal to 143.2394487827058 Degree

angle_converter (2.5 , 'Float ')

Not a valid type .

Answer 1

If your language is JavaScript so use the following code else you can use same function for other language just else changing the syntax:

Javascript:

  var angle_converter = function(value,valueType){ if (valueType=="degree"){ return (value*Math.PI)/180; }else if (valueType=="radian"){ return value*180/Math.PI; } else{ return "Not a valid type!" } } console.log(angle_converter(2.5,"degree")) console.log(angle_converter(2.5,"radian")) console.log(angle_converter(2.5,"float")) 

Python:

import math
def angle_converter(value,valueType):

    if valueType=="degree":
        return (value*math.pi)/180;
    else:
        if valueType=="radian":
            return value*180/math.pi;
        else:
            return "Not a valid type!"

#------------ USE: ------------
print(angle_converter(2.5,'degree'))  # >> 0.0436332312999
print(angle_converter(2.5,"radian"))  # >> 143.239448783
print(angle_converter(2.5,"float"))   # >> Not a valid type!

Live Demo

Or this one:

import math
def angle_converter(value,valueType):
    if valueType=="degree":
        return degree_to_radian(value);
    else:
        if valueType=="radian":
            return radian_to_degree(value);
        else:
            return "Not a valid type!"

def degree_to_radian(in_degree):
    return((in_degree*math.pi)/180)

def radian_to_degree(in_radian):
    return(in_radian*180/math.pi)

print(degree_to_radian(2.5))  # >> 0.0436332312999
print(radian_to_degree(2.5))  # >> 143.239448783
print(angle_converter(2.5,'degree'))  # >> 0.0436332312999
print(angle_converter(2.5,"radian"))  # >> 143.239448783
print(angle_converter(2.5,"float"))   # >> Not a valid type!