Programmable Scientific Calculator&plotter 1.9
Part of the code is written by Peter Olson on codeproject.com.
This is a programmable scientific calculator with functionalities of 2D-plotting, Solving Quartic(or lower) functions, Newton's method, dealing with Complex numbers.
"People who don't need Scientific Calculator" will also feel insanely useful because the calculator intuitively shows you the ways you calculate!
Give it a try!
Requirements: iOS 7.0 or later. Compatible...