Excellent math app

One thing I really like about this app is how it allows you to create documents (consisting of calculation steps, plot steps, or script steps) which can be saved, imported, or exported. In any step in a document the variable Ans always contains the result of the last calculation so, for example, you can have pocketcas differentiate a function in x in a calculation step, and follow with a plot step that plots Ans, to see the graph of the derivative. Also any step can be duplicated, which saves a lot of typing when you want to do similar things. On graphs of functions, you can easily zoom in and out, display x and y coordinates while moving along a curve, and see a table of coordinate points that belong to the curve. It works very well with complex numbers and symbolic calculations. It is easiest to use on an iPad, but Ive had no problem using it on my iPhone.

Theepicdude59 about Mathematics with PocketCAS Pro, v3.8.2