Reply To: Rav Aharon Leib Shteinman tells Yidden to shun secular education

Iced please inform where in the gemara you find trigenometry and calculus?

Easy. Kesubos 93a. See below (mods please allow the link).

http://www.ma.huji.ac.il/~raumann/pdf/Man%20with%20Three%20Wives.pdf