Wolfram Language (Mathematica), 38 bytes
Tr[1^ResourceFunction["Collatz"]@#]-1&
Don't Try it online!
Doesn't work on TIO due to using the Collatz builtin which needs to be downloaded from ...
Double the Size of an Image
Take, as input, an image or a list of values for each pixel, and return an image or list of pixel values for an image of twice the size in each direction.
Specific Rul...
Wolfram Language (Mathematica), 70 bytes
{Tr[1^StringSplit@#],StringLength@#,StringLength@StringDelete[#," "]}&
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What made me decide to use Mathematica for string processing?...
