This bilingual problem-solving mathematics software allows you to work through 19292 trigonometric equations with guided solutions, and encourages to learn through in-depth understanding of each solution step and repetition rather than through rote memorization. The software includes all trigonometric and inverse trigonometric functions. Each solution step is provided with its objective, related definition, rule and underlying math formula or theorem. A translation option offers a way to learn math lexicon in a foreign Langue. Test preparation options facilitate development of printable math tests and homeworks, and automate preparation of test variants around each constructed test. A number of variant tests are ready for students to review and reinforce their skills. The software supports bilingual interface and a number of interface styles. Free fully functional trial version of this program is available