nicely done!first one use ndgrid finish the orginal expansion in this one.
I think it's the first time I see this function in Cody.
Summing Digits within Text
Tell me the slope
Split a string into chunks of specified length
Generate this matrix
Circular Primes (based on Project Euler, problem 35)
Diophantine Equations (Inspired by Project Euler, problem 66)
Hackathon - String version
Pseudo Square Root (Inspired by Project Euler 266)
What digit is it?
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