Describe: This solves problems for right triangles, oblique triangles and bolt circles. It calculates sines and compound sines, and you can use decimal degrees, or minutes and seconds for calculation inputs and outputs. It will round numbers from one to 15 decimal places, and it performs calculations for inscribed and circumscribed polygons. You can plot circles, points and lines, find intersections, connect lines to circles at tangents, and place circles tangent to angles. All modules allow data input in either English or metric units, and values can be converted between measurement systems. Www download kwiktrig 3 3 advices.