Free graphing calculator software for mac

Toms GC is intended (one day) to be a replacement for the old graphing calculator for Mac OS 9-. Currently it supports plotting an arbitrary number explicit curves, surfaces and vector fields, in 2D and 3D.
It includes a stereo 3D mode for use with red/cyan glasses
Main features:
- Plotting of curves as a function of x or a function of y
- Plotting of surfaces as functions of x and y, either as points, a wireframe or a surface (surface sucks)
- Plotting of vector fields as a function of R (the < x,y,z> vector)
- Functions: sin, cos, tan, ln, *, +, /, -, ^ (* and / are dot and cross respectively between vectors), v(a,b,c) to make a vector of a,b and c
- Stereogram graph drawing, but it needs some 3D glasses to look through to see this.

Graphing Calculator Viewer 1.5b3 is a tool which can view and interact with Graphing Calculator documents. It includes examples and demonstrations of the software.

Headings Calculator displays associated magnetic headings (45, 90, 135, 180, 225, 270, 315 and 360 degrees) based on user input.

I originally created this application for use while flying X-Plane (the worlds FINEST flight simulator for Mac OS and Windows).

This applications was created using RealBasic 2006 which, in my humble and inexperienced opinion, is the best rapid development environment for Mac OS.

Tape Calculator was designed to replace a standard desktop adding machine, allowing 10-key touch number entry. Tape Calculator is perfect for high-speed substraction and adding of numbers and being able to verify totals.

Enhancements
- No longer makes a noise with every keypress.
- Supports copy - pressing [command+c] will copy the contents of the tape to the clipboard.
- Requested features for later versions: Tapes longer than 25 items.

The Golden Ratio Calculator is a great dashboard widget for the Mac. The golden ratio is a well-known mathematical feature that is often used in graphic design because of its inherent asthetic qualitites. The Golden Ratio Calculator widget helps you match columns or split a container into two columns.

Enhancements
- The widget is now 23% smaller and is a little easier to use.

Fat Calculator allows you to approximate your body fat percentage using a tape measure - even if you dont have access to fancy scales or men with calipers.
It uses one of three methods to do so - those used by the US Navy, the US Army and the YMCA.
Ive released this application as freeware. Im considering enhancing it with the ability to store your figures each time you measure yourself and draw pretty graphs telling you the changes in your measurements and fat percentage over time. If I do that, Ill probably charge a small amount for the application. Let me know if youd like this feature - and youd pay for it.
Enhancements:
- First release.

Bayesian Calculator 2.0.2 is a distinguished and easy to use tool which calculates positive predictive power, given prevalence and test results.

Requirements: Mac OS X 10.2 or higher (Universal Binary)