Introduction to C-Programming: As seen in ENGS 20

/* Create a complex number from real and imaginary parts */
complex_t complex(float x, float y);

/* Create a complex number from polar coordinates */
complex_t polar(float R, float phi);

/* Extract the real part of a complex number */
float real(complex_t z);

/* Extract the imaginary part of a complex number */
float imaginary(complex_t z);

/* Finds the complex conjugate */
complex_t c_conjugate(complex_t z);

/* add two complex numbers */
complex_t add_c(complex_t z1, complex_t z2);

/* Subtract complex numbers */
complex_t subtract_c(complex_t z1, complex_t z2);

/* Multiply complex numbers */
complex_t multiply_c(complex_t z1, complex_t z2);

/* Divide complex numbers */
complex_t divide_c(complex_t z1, complex_t z2);

/* Complex exponential function, using e^(x+iy) = e^x(cos y + i sin y) */
complex_t exp_c(complex_t z);
    
/* Complex logarithm: log(z) = ln(|z|) + i arg(z) */   
complex_t log_c(complex_t z);

/* complex square root: take square root of length and half the angle */
complex_t sqrt_c(complex_t z);

/* Complex absolute value: |z| = (x*x + y*y)^(1/2) */
float abs_c(complex_t z);

/* argument of a complex number */
float phase_c(complex_t z);

/* display a complex number to the console */
void display_c(complex_t z);