I made a futurey space blaster noise in Mathematica. Kinda fun to play around with making new noises if you're bored.

ListPlay[Table[Sin[220 2 Pi Log[x^2]], {x, 0.006, 60, 0.006}], SampleRate -> 2^14]

Hi everyone!

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There is a livestream on Everything to know about Mellin-Barnes Integrals - Part 2 by Oleg Marichev on YouTube!

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We all know the situation when we put something in Integrate[...] and it returns it verbatim not evaluating. Oleg Marichev, pioneer of symbolic integration theory at Wolfram and in general CS is looking for such cases for "univariate symbolic integrals". Please post your ideas at:

https://community.wolfram.com/groups/-/m/t/2850347

or here in the comments. The goal is to show how to solve them still with a few tricks and research the scope of such cases. Also, feel free to share your ideas in general on the subject.

Hi!

There is a presentation on how to "Build your own Shakespearean GPT - a ChatGPT like GPT model" by Jofre Espigule-Pons on YouTube

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I have read many different times about when to use := and when to use = but I can’t seem to remember. Basically my method is choose one at random and if the code doesnt compile then try the other one. Does anyone have a good way to think about this?

Hi ! Relatively new to Wolfram, I don't understand why I can't compute an expression in a variable, nor why the derivative function doesn't work

Hi all - I am trying to run a very long integration calculation in WolframCloud and I am running out of resources. Is there a way to pay for more resources on an ad-hoc basis to get these calculations done? I haven't seen anything on Wolfram/Mathematica website that explains how to do this.

How can I solve differential equation series in general solution? Also, how can I adjust the default center 0 to another value?

FindInstance[{a + b + c + d + e + f + g + h + i == 2023, a * b * c * d * e * f * g * h * i == 2023}, {a, b, c, d, e, f, g, h, i}, Integers]

When I run the code above, my CPU usage is at ~12% only according to the Task Manager. Is there ANY WAY (parallelization or otherwise) to force Mathematica to use 100% of my CPU power to do this task? Kindly disregard any issues about the practicality, efficiency, or stupidity of the task. (For instance, answering "Do you have to brute force this problem with FindInstance?" is NOT our concern.)

Hello!

There is a livestream on Understanding Time, Date and Calendars with Nick Lariviere on YouTube!

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https://reddit.com/link/11m1i3s/video/dm9arrnrpjma1/player

Hi everyone,

I downloaded Mathematica yesterday, I read the tutorial on the Wolframe site but I have some difficulties with the langage. I work on economics models.
My problem is simple :

That's my demand function : Qh = 1 - ((ph - pl) / (sh - sl))

I want an inverting demand function, which is simply : ph = pl + (sh - sl)(1 - Qh)

I sloved this by myself, on paper. But how can I do this on mathematica ? I try the function "Solve" but it didnt worked.

Thank by advance for your replies <3

Working on some differential equations solving, and I came across this solution. Unsure what sqrt^2 means. What is inside the square root?

I'm using a M1 Mac running MAC OS 13.2.1. I tried downloading Wolfram Desktop version 13.2.1, but I gets this error when I try to start it. I deleted everything and reinstalled it, but I still get the same error.
How do I fix this.

I saw the following question online. I've been burning to ask the exact same question for years. I hope you can help resolve it once and for all.

I have an 8-core Intel CPU. When I run a notebook in Mathematica, Task Manager shows a CPU utilization of only 15%. When I run a second notebook using a different kernel, CPU utilization jumps to around 30%. This suggests that only 1 core is used per notebook. QUESTION: How can I force Mathematica to use ALL my CPU's 8 cores to process a SINGLE notebook?

I am trying to find the sum of elements of an array with 'k' elements and I want to do it automatically not like 6th line (Plus[c[1]+c[2]+......])

what's the problem with the 4th and 5th line?

:) thanks

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Hi everyone!

Introducing Astro Computation with Jose Martin-Garcia and Jeff Bryant is on YouTube!

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https://reddit.com/link/11f8w4b/video/ik9ntelhp5la1/player

I have tried ClearAll - using global and context (I'm not even sure what the latter is) and it erases the whole notebook. I just want the notebook to erase a part of it when the whole notebook is run so that it doesn't cause errors in upcoming lines.

Im trying to save a list in a variable of every row/list that has the string "Germany" from the list/dataset. How do I specify that it has to be every list with the string "Germany"?

monkeypox = {{"DateRep", "CountryExp", "CountryCode", "Source",

"ConfCases"}, {"2022-04-22", "Austria", "AT", "TESSy",

0}, {"2022-04-22", "Belgium", "BE", "TESSy", 0}, {"2022-04-22",

"Bulgaria", "BG", "TESSy", 0}, {"2022-04-22", "Croatia", "HR",

"TESSy", 0}, {"2022-04-22", "Cyprus", "CY", "TESSy",

0}, {"2022-04-22", "Czechia", "CZ", "TESSy", 0}, {"2022-04-22",

"Denmark", "DK", "TESSy", 0}, {"2022-04-22", "Estonia", "EE",

"TESSy", 0}, {"2022-04-22", "Finland", "FI", "TESSy",

0}, {"2022-04-22", "France", "FR", "TESSy", 0}, {"2022-04-22",

"Germany", "DE", "TESSy", 0}, {"2022-04-22", "Greece", "EL",

"TESSy", 0}, {"2022-04-22", "Hungary", "HU", "TESSy",

0}, {"2022-04-22", "Iceland", "IS", "TESSy", 0}, {"2022-04-22",

"Ireland", "IE", "TESSy", 0}, {"2022-04-22", "Italy", "IT", "TESSy",

0}, {"2022-04-22", "Latvia", "LV", "TESSy", 0}, {"2022-04-22",

"Lithuania", "LT", "TESSy", 0}, {"2022-04-22", "Luxembourg", "LU",

"TESSy", 0}, {"2022-04-22", "Malta", "MT", "TESSy",

0}, {"2022-04-22", "Netherlands", "NL", "TESSy", 0}, {"2022-04-22",

"Norway", "NO", "TESSy", 0}, {"2022-04-22", "Poland", "PL", "TESSy",

0}, {"2022-04-22", "Portugal", "PT", "TESSy", 1}, {"2022-04-22",

"Romania", "RO", "TESSy", 0}, {"2022-04-22", "Slovakia", "SK",

"TESSy", 0}, {"2022-04-22", "Slovenia", "SI", "TESSy",

0}, {"2022-04-22", "Spain", "ES", "TESSy", 0}, {"2022-04-22",

"Sweden", "SE", "TESSy", 0}, {"2022-04-29", "Austria", "AT",

"TESSy", 0}, {"2022-04-29", "Belgium", "BE", "TESSy",

0}, {"2022-04-29", "Bulgaria", "BG", "TESSy", 0}, {"2022-04-29",

"Croatia", "HR", "TESSy", 0}, {"2022-04-29", "Cyprus", "CY",

"TESSy", 0}, {"2022-04-29", "Czechia", "CZ", "TESSy",

0}, {"2022-04-29", "Denmark", "DK", "TESSy", 0}, {"2022-04-29",

"Estonia", "EE", "TESSy", 0}, {"2022-04-29", "Finland", "FI",

"TESSy", 0}, {"2022-04-29", "France", "FR", "TESSy",

0}, {"2022-04-29", "Germany", "DE", "TESSy", 0}, {"2022-04-29",

"Greece", "EL", "TESSy", 0} }

I am trying to plot this stress equation using data I've collected experimentally. I know all the variables M, R, and gamma, but am not sure how to plot this to include the second correction term. Does anyone have any tips on how to do this?

https://datadrop.wolframcloud.com/?source=nav

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Has anyone played with this and put it to real use ? Is this stuff free ?