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Questions tagged [wolframalpha]

Wolfram Alpha (also written WolframAlpha and Wolfram|Alpha) is an answer-engine developed by Wolfram Research

Wolfram|Alpha is an online service that answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer as a search engine might. It was announced in March 2009 by British scientist Stephen Wolfram, and was released to the public on May 15, 2009.

Source: Wikipedia

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Could we get different solutions for eigenVectors from a matrix?

My purpose is to find a eigenvectors of a matrix. In Matlab, there is a [V,D] = eig(M) to get the eigenvectors of matrix by using: [V,D] = eig(M). Alternatively I used the website WolframAlpha to double check my results. We have a 10X10 matrix…
farzin parsa
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Tell WolframAlpha what variables I use

When you write something like "X1 + Wa + Wb + L + Ra" Wolfram will say "Assuming "L" is a unit link Can I write something to tell Wolfram that X1,Wb,Wa,L,Ra are variables? For example on matlab I can write "syms X1 Wb Wa L Ra"
arioman
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Conflicting Sage vs Wolfram evaluation of a limit?

Why are the following computed limits different (1 by Sage, 0 by Wolfram), and which (if either) is correct? EDIT: Revised per @Bill's suggestion to increase the numerical precision in Wolfram. (I don't know how to do the same in Sage.) The…
r.e.s.
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How can i input latex to wolframalpha api

I get problem with latex as the input for wolframalpha api. When i input this expression x^2 - 49 = 0, the returned results look fine, but when i input the latex format x^{2} - 49 = 0 it returns completely different results. Does any know how to…
ho__oh
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Wolfram Alpha and scipy.integrate.quad give me different answers for the same integral

Consider the following function: import numpy as np from scipy.special import erf def my_func(x): return np.exp(x ** 2) * (1 + erf(x)) When I evaluate the integral of this function from -14 to -4 using scipy's quad function, I get the…
abcd
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How to transform latex into wolfram?

I want to transform latex codes into wolfram on android,but I have no idea of how to do it, could anybody here to help me?
Lakeofsigh
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Wolfram Alpha API JavaScript

I have recently been working on my J.A.R.V.I.S web app, which I am coding in HTML, CSS, JavaScript and jQuery. I have got the interface, speech recognition, and speech synthesis working so far. I have a few commands already (eg. weather, searching…
felixpackard
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what is the method for WolframAlpha to get the integer solution of indeterminate equation?

To input " 1/x+1/y-1/xy^2 = 3/4 " in wolframalpha ，It can get the integer solution Integer solution: x = 2,y = 3 How it get?
yibotg
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Why does this expression substitution not work?

I want to use wolframalpha to find the probability of a line y = a x + b passes through the point [2,8], when a and b are determined by fair dice roll. This does what i want: Count[Flatten[Table[a 2 + b, {a,6},{b,6}]],8]/ Length[Flatten[Table[a 2 +…
Margus
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Uses for Wolfram Alpha in programming

Now that Wolfram Alpha is released, I am interested in finding out if it can be used as a time-saver in daily programming. What would you use Wolfram Alpha to do, that earlier took you more time to do manually? I guess the "Web and Computer…
Espen Herseth Halvorsen
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Check if two math answers are equivalent

I'm writing a small app in python which lets users answer math questions. The problem I'm having is checking their answers. Say there's a question like: "Factorise x^2 + 3x +2" There are different ways to answer this; for example: (x + 1)(x + 2) (x…
bluepnume
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How to modify OUTPUT font type?

Is it possible to change the OUTPUT font type instead of the default one? How? This is my default stylesheet: http://filefactory.com/file/cfc2cb0/n/blueOutput.nb Thanks!
user342552
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How do I tell Wolfram Alpha that I want it to compute the terms of an integer sequence?

I want to compute a list of the terms of the sequence (14747-40*n)/(2621440*(41-n)), n from 1 to 40 I tried entering the above in Wolfram Alpha, and it plots me a graph of the function. This isn't what I want. I've tried variations on this command,…
Hammerite
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How to calculate the convolution of a function with itself in MATLAB and WolframAlpha?

I am trying to calculate the convolution of x(t) = 1, -1<=t<=1 x(t) = 0, outside with itself using the definition. http://en.wikipedia.org/wiki/Convolution I know how to do using the Matlab function conv, but I want to use the integral definition.…
Bruno Calza
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Calculating 3^3^3^3 (very large exponent / how did Wolfram do it?)

I can't find a right algorithm / struct to calculate the number simply in C or Go. However, a class can easily be created in Python. At first glance, the calculation seems to be very straight forward. However, when you look at the sample calculation…
Polv
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