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- \ Help for Complex Floating Point Arithmetic
-
- Note: Complex numbers are stored on the floating point stack with the
- imaginary part on top and the real part second on the stack.
-
- ZDROP ( Z: z -- )
- Drop a complex number from the floating point stack.
-
- ZDUP ( Z: z -- z z )
- Duplicate a complex number on the floating point stack.
-
- ZSWAP ( Z: z1 z2 -- z2 z1 )
- Exchange the top two complex numbers on the floating point stack.
-
- ZNIP ( Z: z1 z2 -- z2 )
- Drop the second complex number from the floating point stack.
-
- ZNEGATE ( Z: z1 -- z2 )
- Negate the complex number on the floating point stack.
-
- ZCONJUGATE ( Z: z1 -- z2 )
- Replace the complex number on the floating point stack with its
- complex conjugate.
-
- ZJ* ( Z: z1 -- z2 )
- Multiply the complex number on the floating point stack by the
- unit imaginary operator j .
-
- Z+ ( Z: z1 z2 -- z3 )
- Add the two complex numbers on the floating point stack.
-
- Z- ( Z: z1 z2 -- z3 )
- Subtract the complex number at the top of the floating point
- stack from the complex number second on the floating point
- stack.
-
- Z* ( Z: z1 z2 -- z3 )
- Replace the top two complex numbers on the floating point stack
- with their complex product.
-
- Z/ ( Z: z1 z2 -- z3 )
- Complex divide the complex number second on the floating point
- stack by the complex number at the top of the floating point
- stack.
-
- ZVARIABLE ( -- addr )
- Create a variable to hold a complex number.
-
- Z! ( Z: z -- ; addr -- )
- Store the complex number at the top of the floating point stack
- at the address specified at the top of the parameter stack.
-
- Z@ ( Z: -- z ; addr -- )
- Push a copy of the complex number at the address specified at the
- top of the parameter stack onto the floating point stack.
-
- ZMAG ( F: r1 r2 -- r3 )
- Replace the top two numbers on the floating point stack with
- the square root of the sum of their squares. Used to obtain
- the magnitude of a complex number, for example.
-
- TOPOLAR ( F: x y -- r theta )
- Convert the complex number at the top of the floating point
- stack from its cartesian form to polar form. The angle is
- in radians.
-
- TOCART ( F: r theta -- x y )
- Convert a complex number in polar coordinate form to cartesian
- coordinate form.
-
- F^2 ( F: r -- r^2 )
- Square the floating point number on top of the floating point
- stack.
-
- F2/ ( F: r -- r/2 )
- Divide the floating point number at the top of the floating
- point stack by 2.
-
- F2* ( F: r -- 2*r )
- Multiply the floating point number by 2.
-
- ZSQRT ( Z: z1 -- z2 )
- Take the complex square root of the complex number at the top
- of the floating point stack. The root which is returned has
- a positive real part.
-
- -ZSQRT ( Z: z1 -- z2 )
- Take the complex square root of the complex number, and return
- the root which has a negative real part.
-
-