RedCrab

RedCrab: A friendly, yet feature-rich calculator that lets you solve and graph mathematical expressions

The default calculator available in Windows bundles a decent number of functions, including a few advanced ones but it wasn’t designed for productivity. RedCrab is a friendly alternative, that provides all the necessary features for solving advanced mathematical expressions.

The program includes a fullscreen mode and you can enter math expressions in the editor window which can be shown as a grid or a blank page. RedCrab bundles a number of panels which you can expand to your liking.

Scientific functions like sin, cos and log, a number pad, symbols and other elements are available, as well as various programming and statistics related tools.

What’s more, you can import JPEG or BMP images to explain complex tasks in a visual manner, but also insert text boxes with custom font and other editing options like the font’s style, color and size.