Graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions and inequalities. Calculus features: regression analysis, derivatives, tangents, normals and more.

Capable free tape calculator. Evaluate non-trivial expressions like ln(1+2%) * sin(4 5\6)^7. Compact or full-size to edit the tape, re-calculate, cut/paste, save/restore. Select font, button size, show/hide keypad. Numeric bases: bin, oct, hex.

JD Free Calculator is a complete replacment to the standard windows calculator. Not only does it perform all the functions of the windows calculator it also offers: Complete printable tape, A basic loan calculator with comparisons