Adding Entities to AirportData[]
Mathematica's AirportData[] is hopelessly outdated.I'm trying to manually add entries for some common ICAO airport codes, such as OTHH (Doha) or FAOR (Johannesburg)store = EntityStore["Airport" ->...
View ArticleStep by Step for Generalized Eigenvectors?
When I do WolframAlpha["Eigensystem[{{1,-3},{3,-5}}]", PodStates -> {"Step-by-step solution"}]It only shows steps for non-generalized eigenvectors.Is there any way to get the step by step from WA...
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Why does Wolfram|Alpha give inconsistent result for $\int_0^\infty...
Why Wolfram gives inconsistent result for :$$I=\int_0^\infty \frac{e^{x-x^2}-e^{-x-x^2}}{x}~dx$$As shown in the picture below, the analytical integration gives $-i\pi$, but numerical integration gives...
View ArticleInteractive steam tables and phase diagrams in Mathematica
I teach an undergraduate course in Thermodynamics and I would love to use Mathematica to demonstrate the various engineering processes that involve the expansions and compressions of steam and common...
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A femme is a wife is a Frau
As can be seen fromLanguageData["Properties"] // MulticolumnMathematica's translation capabilities seem to be very limited. It can translate month names, colors and numbers, but, apparently, not...
View ArticleWolframAlpha::kbserr: Request to knowledgebase server api.wolframalpha.com...
It is all in the title. If I run WolframAlpha["2+2"], Mathematica returns the error WolframAlpha::kbserr: Request to knowledgebase server api.wolframalpha.com failed with error code 503. What is...
View ArticleIs it possible in Mathematica to get a step-by-step evaluation of the following?
Is it possible in Mathematica (or WolframAlpha["...]") to get a step-by-step evaluation of the following? f[n_, x_] := Sum[(-1)^m (n!/(m! (n - 2 m)!)) (2 x)^(n - 2 m), {m, 0, Floor[n/2]}]f[3, x]
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Graph regions in the complex plane [closed]
How can I graph the following regions in the complex plane using wolfram-alpha? I have tried quite a bit.
View ArticleWolfram Alpha - limit of sum [closed]
I am trying to solve the following 4 math problems. I think I understand why problems 1 and 3 have a solution of 1. But I don't understand why problems 2 and 4 have a solution of 0. Can you help...
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Converting WolframAlpha Output to Markdown
I am calling Wolfram Alpha using WolframScript. That is, I can't display all the beauty that is inserted into Wolfram Mathematica Notebook. Let's say I execute a line like this:result =...
View Articleplease help me resolve find what method gives me a result for this
I have this mathematic problem: (124164a/300b/2360/.85)+(124164a/25b/2360/.85)+(124164a/55b/2360/.85)=3.81=(a/b/2360/.85)And this is the result:a≈87.4514, b≈0.0114422I payed for WolframAlpha Pro just...
View ArticleConvert WolframAlpha output to $\LaTeX$
I am using WolframAlpha app on my iPad and would like to confirm that there is no way to convert its output to $\LaTeX$ form?It would be nice to have this feature so as to copy it to Stack Exchange for...
View ArticleIs there an issue with calls to WolframAlpha from Mathematica?
I was trying to use the step by step to get a solution to an integral, but it was failing, so I tried an even simpler example from the Wolfram documentation WolframAlpha["what is the distance to the...
View ArticleWhy does Wolfram|Alpha give a different answer for the derivative of the...
Consider the function $f(x)=\sqrt[3]{x^2}$. To find $f'(x)$, I use the rule $\color{red}{\boxed{\color{black}{\large\big(\sqrt[n]{u^m}\big)'=\frac{mu'}{n\sqrt[n]{u^{n-m}}}}}}$. Therefore $\boxed{\large...
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Recreating map from Wolfram|Alpha with GeoGraphics
I have tried to create a map using GeoGraphics, and I have not been able to get one with the same quality as the result Wolfram|Alpha gave me.WolframAlpha["distance between eeuu and north korea",...
View ArticleA limit involving Mathematica, Wolfram Alpha, and showing the steps
I'm trying to calculate this Limit:Assuming[{d \[Element] Integers, d > 0, 0 < p < 1}, Limit[N^(-1 - d) (HurwitzZeta[-d, 1 + p N]), N -> Infinity]]Which works fine and outputs:-(p^(1 +...
View ArticleWolfram|Alpha is unable to evaluate this improper integral
I want to solve this integral$$\int_{0}^{\frac{\pi}{2}} e^{-(\pi \tan(x) - 1)^2} \, dx$$I tried Wolfram alpha but it is unable to evaluateI tried this codeIntegrate[Exp[-(Pi*Tan[x] - 1)^2], {x, 0,...
View ArticleMathematica syntax @ \\Refine\\Simplify [closed]
I first tried to calculate(simplify)-(Cosφ-Sinφ)^2-Sinφ+Cosφ^2--k^2Sin[Θ]Sin[φ]Cos[φ]/Sqrt[r^2-k^2Sin[φ]^2]^2this in Wolfram|Alpha and the result was "Wolfram|Alpha doesn't understand your query". I...
View ArticleInitial value problem with Laplace transform
How can I use Mathematica to resolve a Initial value problem involving Laplace-Transform?For example:Solve, using Laplace Transform, the following Initial value problem in [0,+∞]$$ \begin{cases} y'' -...
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Integral of the Poisson Kernal [closed]
I wish to solve the following definite integral:$\int^{b}_a P_r(\theta-\phi) d\phi$,where $P_r(\theta-\phi) = \frac{1-r^2}{1 + r^2 -2r cos(\theta - \phi)}$ is the Poisson kernel. This is something I...
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