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Desmos: Graphing calculator
Desmos Graphing Calculator is an Android and iOS app with following features:
- Graphs: polar, Cartesian coordinates, parametric plots. There is no limit to the number of expressions that you can draw at once, and you will also not be written as y =! …
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RekenTest: Mental arithmetic
RekenTest is a flexible and interactive program to train, analyze and test mental arithmetic.
The program is basically designed for sums above 100, but can also be used as a table trainer, for example.
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App or software (3)Organisation, company, NPO