About GF4#
GF4 - “GF” being short for “Graphics Framework” - is a program to display two-dimensional data, such as time series data, and to perform mathematical operations on the data or between two related data sets. In short, it acts like a calculator except that it uses waveforms instead of numbers.
The program aims to make data exploration easy and enjoyable.
GF4 is the 5th generation implementation in the evolution of the underlying concept.
A screenshot: