fCraft.PrepareParametrizedManifold.VarNameToIdx C# (CSharp) Method

        public static int VarNameToIdx( char varName )
        {
            switch ( varName ) {
                case 'x':
                case 't':
                    return 0;
                case 'y':
                case 'u':
                    return 1;
                case 'z':
                case 'v':
                    return 2;
                default:
                    throw new ArgumentException( "unknown variable " + varName );
            }
        }