Excellent Research Platform
WolframAplha is the only app I have discovered that helps my teaching and tutoring. Especially with finite sciences, such as mathematics, physics, linguistics, and other subjects that are difficult to relate to for some students. I have used even used this app to help students with hearing challenges to translate written ASL into written and spoken English so that undergraduate mathematics becomes a relatable subject, despite the differences in context and subject in written ASL. This app is indispensable to higher level education.
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WolframAlpha Classic, v1.6.4