11 questions linked to/from Bake a slice of Pi
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### "Hello, World!"

So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with hello-world, and counting). While this is not the most ...
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### Showcase of Languages

Notes This thread is open and unlocked only because the community decided to make an exception. Please do not use this question as evidence that you can ask similar questions here. Please do not ...
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### Not so triangular numbers

Let's consider the sequence $S$ consisting of one $1$ and one $0$, followed by two $1$'s and two $0$'s, and so on: $$1,0,1,1,0,0,1,1,1,0,0,0,1,1,1,1,0,0,0,0,...$$ (This is A118175: Binary ...
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### Scramble words while preserving their outlines

This is much more advanced than How to randomize letters in a word and Cambridge Transposition because of the rule about which letters may be swapped with which. A simple regex will not suffice here. ...
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### Determine the area enclosed by slashes

For example, let's look at the following ASCII art: ...
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### Help me golf my numbers!

When writing code-golf programs, I usually end up using some numeric constants. I always put them in decimal because that's how I think, but I just realized that my language supports other number ...
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### Find the nth digit of Euler's number

Challenge Given a positive integer n, you must calculate the nth digit of $e$, where $e$ is Euler's number (2.71828...). The format of the output can be a ...
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### Music with pi and e

Because I forgot to celebrate Pi Day (14.3), let's celebrate with $\pi$, $e$ (Euler's number) and music! Challenge No, we don't have time to eat a pi-pizza, let's make a program. What you need is ...
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