These swift language examples are designed to run on MacOSX, linux, and Windows 10 math routines sin, cos, ... exp, log, ... math.swift source code math_swift.out output function to compute factorial fact.swift source code fact_swift.out output function to compute greatest common divisor test_gcd.swift source code test_gcd_swift.out output more functions that show more inputs and returns funct1.swift source code funct1_swift.out output funct2.swift source code funct2_swift.out output funct3.swift source code funct3_swift.out output funct4.swift source code funct4_swift.out output Function to compute inverse of matrix matinv.swift source code test_matinv.swift source code test_matinv_swift.out output Function to compute determinant of matrix matdet.swift source code test_matdet.swift source code test_matdet_swift.out output Function to solve system of simultaneous equations simeq A X = Y and simeqb AY = X and simeq2 n,A,X,Y simeq.swift source code test_simeq.swift source code test_simeq_swift.out output Function to solve nonlinear system of simultaneous equations simeq A X = Y simeq_newton3.swift source code test_simeq_nweton3.swift source code test_simeq_newton3_swift.out output test_simeq_nweton3a.swift source code test_simeq_newton3a_swift.out output More matrix functions matrix.swift source code matrix_swift.out output More matrix2 functions matrix2.swift source code matrix2_swift.out output Functions used when solving partial differential equations rderiv.swift source code test_rderiv.swift source code test_rderiv_swift.out output nuderiv.swift source code test_nuderiv.swift source code test_nuderiv_swift.out output four dimensions D4_swift needed by pde44 D4.swift source code D4_swift.out output 4 dimensional, 4 th order partial differential equation solved pde44_eq.swift source code pde44_eq_swift.out output 4 dimensional, 4 th order partial differential equation solved previous using nuderiv, this using rderiv pde44_eqr.swift source code pde44_eqr_swift.out output A weird function I saw on the web babana.swift source code banana_swift.out output Another while statement while.swift source code while_swift.out output