A Digital 10-Key Calculator that mirrors real-life



A graph is worth a thousand words

Graphing Calculator

PentaCalc makes it easy for you to graph expressions or equations.

Create a graph

Creating a Graph

Enter a function with [{}] around the function and press [Graph] on the standard calculator.

PentaCalc will look up the tape from the current insertion point until it finds the first expression contained within two curly brackets and will graph that expression.