Wolfram|Alpha is a "computational knowledge engine" developed by Wolfram Research, announced in March of 2009. It is unique in that in answers queries with direct computational results, rather than bringing up a page of documents and various webpages as most search engines do.

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RSA algorithm: How to enter the multiplicative inverse to WolframAlpha?

I'm trying to enter step 5: Compute d, the modular multiplicative inverse of e (mod φ(n)). How do I enter this in WolframAlpha? http://en.wikipedia.org/wiki/RSA_%28algorithm%29#A_working_example
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Plot multiple functions in Wolfram Alpha

I tried to multiple plot in WolframAlpha using this command from the Forum: plot {1<=x<=2 1<y<3} and plot {x=4 1<y<3} and plot {1<=x<=2 y=4} and plot {x=4 y=4} and plot ...
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WolframAlpha - Is it possible to associate equations with theorems?

Suppose I wanted to find out about the Pythagorean Theorem by searching via WolframAlpha. This is trivial -- we can search directly for Pythagorean Theorem and get a wealth of information. But ...
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WolframAlpha won't recognize my second derivative

I have been trying to calculate my derivative in WolframAlpha by inputing this: A=0.921/10^(9), a=1*10^(-9), h=1.055*10^(-34), m=9.109*10^(-31) int_((-pi)/(2*a))^((pi)/(2*a)) A ...
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How are the lines on HTML element hierarchy plots in Wolfram|Alpha generated?

Wolfram Alpha provides HTML element hierarchy plots for web sites. For an example, enter a popular website, like stackoverflow.com into the field: ...
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naming geometric figures

I know how to draw two circles that intersect each other in wolfram alpha. But I kind of want to name them, and, consequently refer to them. For e.g say the circles are c1, c2. They intersect at two ...