Graph.tk
Online graph sketching app that can graph functions and numerically solve differential equations.
16 Alternatives To Graph.tk
Desmos
A beautiful, innovative, and modern online graphing calculator.
GeoGebra
GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching.
Gnome calculator
Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).
GnuPlot
Gnuplot is a portable command-line driven interactive data and function plotting utility.
Google
Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
Matplotlib
matplotlib is a python 2D plotting library which produces publication quality figures in a variety…
Microsoft Mathematics
Microsoft Mathematics is a desktop graphing calculator that can help you visualize and see…
Numi
Numi Organic Tea is a premium, Fair Trade sustainable company specializing in unique and innovative blends of green, black, white, oolong teas, Pu-erh, rooibos, herbal and Flowering Tea™.
QtiPlot
QtiPlot is a professional scientific data analysis and visualisation solution.
SciDaVis
SciDAVis is a free application for Scientific Data Analysis and Visualization.
The Hat
Handy, free random name picker and list randomizer for Windows.
Vis
A vi-like editor based on Plan 9’s structural regular expressions.
WolframAlpha
WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.
errProof
The website has a lot of useful and unique tools.
fxSolver
fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press “Solve.”