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-
- RealFun: Real & Complex Math Libraries for QuickBASIC
- DEMO.TXT
-
- Included in this package are 4 demonstration programs, so
- that you can get a feel for how the libraries are used. The
- sources are stored in text mode so they can be accessed with
- your favorite text processor (like 'more'). The executables
- are stand-alone; they don't need any of the QuickBASIC
- modules to run.
-
- DEMOATAN shows how functions in REALFUN can compute the
- inverse tangent, properly accounting for the quadrant in
- which the angle lies. QuickBASIC's inverse tangent
- function, ATN, would give -0.7854 radians as the inverse
- tangent of -1, whereas REALFUN would give you -0.7854, or
- 2.3562 radians, or -45 or 135 degrees, depending on what you
- want.
-
- DEMOTRIG runs through the gamut of the circular and
- hyperbolic trigonometric functions, tabulating the different
- values for different angles.
-
- DEMOJUL displays a Julia set fractal on a 320 x 200 x 256
- screen. This program is slow, but is a powerful framework
- for "rolling-your-own" fractals. To interrupt the program,
- hit any key. The finished product is contained in
- DEMOJUL.GIF.
-
- DEMONEWT displays another type of fractal, that resulting
- from applying Newton's method to the equation z^4 = 1.
- Again, this is not a quick program, but provides a framework
- for developing your own fractals. To stop the program in
- mid-draw, hit any key. The finished picture is NEWTON.GIF.
-