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MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
Graphing calculator within the Windows desktop console
...If you know coding, be sure to check out the sourcecode, which is in the form of a zipped-up Visual Studio solution. If you would like to import some of the functions into your own project, the code is free to be used.
Virtual TI emulates nearly the entire line of Texas Instruments graphing calculators, and offers features that speed up both debugging and testing of calculator programs. Windows version is quite stable but the Linux/OSX version is only in planning.