If you have to convert an angle from degrees to radians and way back, here are some utility functions in C#, along with a program to test them.
I made use of the "out" keyword here, which allows a function to return more than one value. An alternative would be to return a struct containing all the values.
Any language out there which can do this?

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``````using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Mynamespace
{
class Program
{
static void Main(string[] args)
{
int d, m, s;
//angle is 18Â° 31' 27''
double dd = AngleToDecimalDegrees(18, 31, 27);

DecimalDegreesToAngle(dd, out d, out m, out s);
Console.WriteLine("Decimal degrees for 18Â° 31' 27'' = {0}",dd);
Console.WriteLine("This is : {0} d, {1} m, {2} s",d,m,s);
Console.WriteLine("This is in radians : {0}", ToRadians(dd));
Console.WriteLine("Or back to decimal degrees : {0}", ToDegrees(ToRadians(dd)));
}

public static double AngleToDecimalDegrees(int d, int m, int s)
{
return (s / 60.0 + m) / 60.0 + d;
}

public static void DecimalDegreesToAngle(double ddeg, out int d, out int m, out int s)
{
d = (int)Math.Truncate(ddeg);
double min = (ddeg - Math.Truncate(ddeg)) * 60.0;
m = (int)Math.Round(min);
double sec = (min - Math.Truncate(min)) * 60.0;
s = (int)Math.Round(sec);
}

public static double ToRadians(double degrees)
{
return degrees*Math.PI/180.0;
}

public static double ToDegrees(double radians)
{