Questions tagged [wolfram-alpha-queries]
Use this for questions about calling Wolfram Alpha from Mathematica. Questions about Wolfram Alpha itself are off-topic.
195
questions
5
votes
2
answers
311
views
Is 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?
...
0
votes
1
answer
38
views
WolframAlpha::kbserr: Request to knowledgebase server api.wolframalpha.com failed with error code 503 [closed]
It is all in the title. If I run WolframAlpha["2+2"], Mathematica returns the error ...
2
votes
1
answer
103
views
Why does Wolfram|Alpha give inconsistent result for $\int_0^\infty \frac{e^{x-x^2}-e^{-x-x^2}}{x}~dx$? [closed]
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 ...
5
votes
1
answer
334
views
Step 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 ...
5
votes
2
answers
128
views
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Mathematica's AirportData[] is hopelessly outdated.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)...
3
votes
1
answer
202
views
Shading an area enclosed by a loop
I am plotting the folium of Descartes as a parametric plot, and trying to find the arclength and the area enclosed by the loop. I got both of them covered result-wise, but my professor wants us to ...
0
votes
0
answers
45
views
Get the data from wolfram
result =
WolframAlpha["The force constant of the carbon monoxide molecule"]
I obtained the data of the force constant through this code, and found ...
1
vote
0
answers
106
views
Run the latest Mathematica version without installing it
Is the solution just running mathematica on wolfram alpha? If so, how can one run a or part of a .nb code on wolfram alpha? I only know how to run a single line of code on it.
1
vote
0
answers
55
views
Has FinancialData forgotten how to deliver monthly data?
I seem to get odd results from the following FinancialData code:
...
1
vote
1
answer
194
views
Is there any hope to get the result faster if we use a supercomputer for the given problem?
If an operation in Mathematica (say, computing the determinant of a $88\times88$ parametric matrix) takes much time to be computed on a personal computer (core i7), say a week, then, is there any hope ...
1
vote
1
answer
115
views
Computing expectation with some constants [closed]
I would like to compute the following expression in Wolfram alpha:
$$\mathbb{E}[X-max(aX+b,0)] $$
where $X\sim N(\mu,\sigma^2)$ and $a,b$ are some constants.
Without constants, I can get the result ...
6
votes
1
answer
194
views
Exporting results containing Entities to JSON?
I am looking for a straightforward way to export results from functions like ImageContents, FacialFeatures, and WolframAlpha - symbols that return stuff containing knowledgebase content.
Aside from ...
1
vote
1
answer
98
views
WolframAlpha XML parsing error
I am using the WolframAlpha command to automated solution sets of homework exercises. Here is an sample usage, although this can happen with many different examples:...
1
vote
1
answer
129
views
4
votes
1
answer
204
views
Empty .png figures generated by a function "PlotWithGrid" whereas no problem with Export function
I have an issue about a .wls script that I can't manage to solve for the moment. I execute it with wolframscript interpeter on ...
0
votes
0
answers
80
views
How to access the data object returned from a Wolfram query?
I want to access information regarding the population of the world, over the last 10,000 years, and then visualize it with some annotations.
In particular case, I want to:
grab world population data ...
0
votes
2
answers
100
views
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 ...
4
votes
1
answer
445
views
Why does MMA fail to find a solution but WA does?
I am looking for $n$, where
$$\dfrac{2^{-3 n-2} \pi ^{n+1}}{(n+1)!}<\dfrac{1}{10000000000000000}$$
We can just test values of $n$ and find the smallest $n = 13$, or any $n \gt 13$ or can use ...
1
vote
0
answers
132
views
WolframAlpha website calculator powers
Would be surprised if this hasn't asked before. Also, not sure if tag is correct.
With my graduation I lost access to the free university Mathematica. Today, I was too lazy to do a simple matrix ...
-4
votes
2
answers
195
views
Wolfram Mathematica Code please [closed]
Consider two natural numbers of two-digits, like 46 and 96. They have the property that by exchanging the place of their digits and multiplying the so obtained numbers, we get the same product; i.e.,
<...
0
votes
0
answers
34
views
please 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≈0.0114422
I payed for WolframAlpha Pro ...
0
votes
1
answer
70
views
Constructing Wolfram Alpha Query for Solar Position
When I use Mathematica calls to WolframAlpha, it clearly knows about the motion of the sun, so I can request the solar declination at any date/time:
But I'm having great difficulty crafting a query ...
1
vote
1
answer
339
views
Density of water at a given temperature and pressure
In Wolfram|Alpha if I write:
density water at 500°C and 100 atm
instantly I read:
30.92 kg/m^3 (kilograms per cubic meter)
...
0
votes
0
answers
189
views
Wolfram alpha query works online but not through mathematica?
Bit of a bizarre problem I'm having (well, more a question than a problem). I am trying to solve an integral, which I queried using the online wolfram alpha website. The input and output are ...
1
vote
0
answers
495
views
Calculating double integral bounded by domain in Wolfram Alpha Notebook [closed]
If I want to compute Double Integral on a given region(See attached Picture)
How can I input this on Wolfram Alpha Notebook
0
votes
0
answers
65
views
How can I show the calculation of the determinant of a matrix step by step? [duplicate]
I would like to emulate what Wolfram Alpha does in Mathematica.
Can you help me?
...
3
votes
0
answers
102
views
Engineering materials entity class
Are there any Entity Class like EntityClassList["Mineral"] to get physical properties of "Materials" like steel alloys, polymers, ceramics or ...
6
votes
2
answers
6k
views
Convert 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 ...
2
votes
2
answers
571
views
Wolfram|Alpha query doesn't compute answer
I typed
== integral (e^cosx)((cosx)^2)(sinx) from x=0 to pi
into Mathematica, but it doesn't seem to generate an answer. What did I do wrong?
I entered the query ...
2
votes
1
answer
208
views
Plot a sum of vectors using inline free format or wolframalpha. What is the hidden code?
Using Wolframalpha or inline free format you can obtain a nice representation of a sum of vectors. An example is shown below.
Whish is the hidden code? (or a code that make the same representation). ...
1
vote
1
answer
118
views
General: 2456 is not a valid variable [closed]
... is not a valid variable i dont know whats happend
1
vote
0
answers
95
views
How to make this expression?
How to code this expression in WolframAlpha. I am interested in how to code the second sum, because it contains a boolean expression:
$$\sum_{i=1}^{100}{\sum_{j>n}}{x_{i}x_{j}}$$
2
votes
2
answers
384
views
Why doesn't Mathematica provide an answer while Wolfram|Alpha does, concerning a series convergence?
Among other series I've been working on, I was asked to find whether
$$\sum_n 1-\cos(\frac{\pi}{n})$$
converged, and Mathematica's output to ...
1
vote
4
answers
178
views
How can one expand an arbitrary boolean combination into the $2^n$ atoms of the associated boolean algebra of size $2^{2^n}$?
The answer of user250938 to Can one usefully apply the Boolean functions of Mathematica to measurable Boolean sets? and the second comment of
Monroe Eskew to the answer to https://mathoverflow.net/...
1
vote
1
answer
460
views
The Branch Cut of the Complex Logarithm Used by Default in Wolfram Alpha
The title says it all: what branch cut (like which value of $k$ in $\ln(z)=\ln(r)+i(\theta+2\pi k))$ does Wolfram Alpha use by default in calculating the complex logarithm. I would say "principal ...
0
votes
1
answer
1k
views
step-by-step solution unavailable (( possible intermediate steps ))
When using the (( WolframAlpha["integrate 1/(2+Sqrt[1-x]+Sqrt[1+x])"])) function to find integration steps, this message appears to me what is the explanation and ...
4
votes
0
answers
64
views
What is the current WolframAlpha server capacity?
Considering the increasing workload WolframAlpha is now receiving as it is getting more tightly integrated into the Wolfram language. With things like Entities even ...
5
votes
0
answers
309
views
How to change the Wolfram Alpha query timeout for Ctrl+=?
Sometimes retrieving results from Wolfram Alpha takes time and the default query timeout is not sufficient.
For engagement with Wolfram Alpha implicitly for expr ...
1
vote
1
answer
46
views
How can I price of 100 EUR in RON on 1st of every month back to 4 years
I would like to see the difference between 450 RON and 100EUR converted to RON on 1st of every month back to 4 years.
possibly with a cumulated chart...
3
votes
1
answer
776
views
Difference between free-form input via WolframAlpha[] and CTRL+=
WolframAlpha["query"] - https://reference.wolfram.com/language/ref/WolframAlpha.html
Free-form input - https://reference.wolfram.com/language/workflow/EnterFreeFormInput.html
For example:
...
2
votes
0
answers
1k
views
Step by step solution of a limit of a sequence - Calling Wolfram|Alpha in Mathematica
I'd like to visualiza the step-by-step solution of the following limit by calling Wolfram|Alpha in Mathematica, but I don't know how to specify that n is a positive integer variable:
...
2
votes
1
answer
201
views
WolframAlpha does not give stepwise solution for a simple twodimensional integral
Why does the behave this particular way:
...
0
votes
1
answer
77
views
Quick Wolfram Question [closed]
This is my code so far:
For[i=2, i<10, i++, Solve[x^i == x+1 && x >0]]
I would like to sum up all the x values that it outputs. How can I do so?
1
vote
2
answers
982
views
Is there a way to copy/paste an expression from Mathematica into Wolfram Alpha?
For example, I have the expression
$$\int_0^t \frac{\lambda e^{-\lambda x} (\lambda x)^{k-1}}{(k-1)!} \, dx$$
(written that way in Mathematica). Is there a simple way to copy/paste the (in this ...
3
votes
1
answer
211
views
Daylight hours vs calendar date
Is there a way in Mathematica or Wolfram Alpha to get a plot of daylight hours vs calendar date and rate of change of daylight hours vs calendar date. Lets say I want the plot for latitude 45 degrees ...
2
votes
2
answers
530
views
How to calculate complicated expression in WolframAlpha
I need to evaluate the limit:
$$\lim_{n\to\infty}\prod_{k=1}^\infty \left(1-\frac{n}{\left(\frac{n+\sqrt{n^2+4}}{2}\right)^k+\frac{n+\sqrt{n^2+4}}{2}}\right).$$
I could not type into WolframAlpha ...
4
votes
0
answers
130
views
U.S. Treasury Yield Curve via WolframAlfa
Disturbingly coincident with the U.S. Treasury Yield Curve's recent volatility and inversion, the previously highly reliable & available data from the Treasury's website at Treasury's website xml ...
0
votes
2
answers
194
views
Wolfram Alpha missing solutions to a quadratic equation over the integers?
I don't have Mathematica, but Wolfram Alpha appears to miss integer solutions to bivariate quadratic equation:
solve over integers X^2 + 1672739 Y^2 = 4680419795530281540
returns only two pairs of ...
2
votes
1
answer
38
views
How to fix this error at numerical integration?
I have this:
...
3
votes
0
answers
132
views
Querying WolframAlpha from WolframScript
Is it possible to query WolframAlpha from a wolframscript query? The following yields $Failed:
...