What are some alternatives?
When comparing DuckDuckGo and GnuPlot, you can also consider the following products
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...
StartPage - Startpage search engine, the new private way to search Google. Protect your Privacy with Startpage!
GeoGebra - GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching.
Bing - Bing helps you turn information into action, making it faster and easier to go from searching to doing.
SciDaVis - SciDAVis is a free application for Scientific Data Analysis and Visualization.