Enter rise and run, or any one measure, to get slope in all common formats.
Calculate all six trigonometric functions for any angle.
Solve right triangle relations using Euclid's theorems.
Divide a polynomial by (x - r) using synthetic division.
Format one reference in APA, MLA, Chicago and ABNT side by side.
Print a real-size protractor or ruler (cm and inches) on A4 or Letter paper.
Print lined paper with any line spacing, with a margin, dotted or handwriting practice lines, on A4 or US Letter.
Donaldson R F