This is the same great A+ Calc application that is so popular on ticalc for helping students in their Calculus classes. The application offers the exact same functionality as the original, but has been fixed so that certain functions, namely the Taylor function, can be run without the theta_w_theta programs loaded in the user's RAM. Thus, this app should be free of this bug, allowing it to be run without any basic programs loaded and unarchived on the calculator, making it entirely portable. I thank the original author of the program, Chip Hurst. ORIGINAL FILE DESCRIPTION FOR CHIP'S UPLOAD: This is a must download. This program has over 60 functions, including: trig functions, expression simplification, limits, derivatives of functions, implict differentiation, tangent finder, function explorer, all roots to an equation, RAM, 1st fundamental theorem of calculus, trapazoidal/simpson's rule, average value theorem, slope field, euler's method, improved euler's method, runge kutta method, area between two curves, rotational volume/surface area, arc length, hyperbolic functions, partial fractions, taylor series, parametric functions, polar functions, and many more! As an added bonus, all answers are in exact form. Also this basic program was compiled into an application! (thanks to Martin Warmer's BasicBuilder App Creator).