darktable
Description: darktable is an open source photography workflow application and raw developer. It manages your digital negatives in a database, lets you view them through a zoomable lighttable, and enables you to develop raw images and enhance them.
Type: software
Pricing: Free
Desmos
Description: Desmos is an online graphing calculator that allows users to plot mathematical functions, equations, inequalities, parametric equations, polar equations, scatter plots, and regression lines. It has an intuitive, easy-to-use interface and supports mathematical expressions formatted in standard and LaTeX notation.
Type: software