The MathPad 2.6.4 distribution file contains the application, documentation, examples and several XFuns for adding optional features.

[MathPad_264.sit] (548K) UNH site 1
[MathPad_264.sit] (548K) UNH site 2
[math-pad-264.hqx] (744K) InfoMac site

MathPad 2.6.4 requires a powerPC processor with OS-X or System 8.6 or better with Carbonlib. Older versions are also available.