Tangents
ZGrapher v.1 4
ZGrapher is a simple graphic utility. It can be helpful for any user, from a schoolboy to a professional mathematician.
KwikTrig v.3.0.5
KwikTrig solves for RIGHT and OBLIQUE triangles, BOLT CIRCLES, calculates SINES and COMPOUND SINES. Use decimal degrees, or degrees/minutes/seconds for input/output on all calculations on the above and rounds numbers from 1 to 15 decimal places.