Appears On
An interactive trigonometry explorer draws labeled quadrant diagrams, parametric curves, and Lissajous figures using user-supplied SIN and COS multipliers with custom UDG graphics.
A 3D surface plot combining cosine waves and Gaussian exponential bumps uses hidden-line removal arrays to render a dramatic mathematical landscape — but be prepared to wait.
A ripple-surface 3D plotter uses perspective projection and trigonometric rotation to render z=cos(0.1·(x²+y²)) as a connected wireframe mesh.
A 3-D surface plotter stores multiple rotated views using hand-coded Z80 machine routines, then plays them back as a smooth animation loop.
A fascinating 3D surface plotter that renders Gaussian bell curves with perspective projection and saves multiple rendered frames using hand-POKEd Z80 machine code.
A hypnotic animated wave plot uses sine-driven coordinates and an error-trap handler to keep running until something inevitably goes wrong.
A compact RLE graphics manager with machine code encode, decode, invert, and wipe routines lets you store, load, and manipulate compressed screen images from cassette.
A 36-frame rotating 3D pyramid with hidden-line removal, perspective projection, and pre-computed animation frames played back from a single large array.
Watch a 3D saddle-shaped surface animate across four stored screen pages, driven by Z80 machine code block-copy routines and perspective projection math.
A morphing 3D saddle-cosine surface rendered with perspective projection, using Z80 LDIR machine code to page display-file snapshots in and out of RAM.
A BASIC loader installs a self-verifying machine code sprite engine that hooks the interrupt vector, animating graphics automatically while humorous fake copyright strings scroll by.
