The makers of Mathematica have created a website to "make it possible to compute whatever can be computed about anything." They need some help at the moment and will give you a link to participate if you find something the site is missing like digital filter, frequency spectrum, Hamming window, or impulse function.
Wolfram Alpha is currently more powerful than using Google's built in calculator but I find the interface to be cumbersome. If you perform more than one calculation the history function can interfere with your text input and you lose the focus from the text entry box after each result.
It does look useful for learning about mathematical functions, try epi*x for example, you can see a quick graph and they give a lot of useful formulae like series representations and integrals.
1 comment:
I did some testing with Wolfram myself and was generally disappointed when it couldn't do the types of queries they showed in the demo video. Once you get an grip on its limitations, it tends to work pretty well.
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