I've learned from this and similar solutions of the use of shiftdim with a negative number. This may well be handy for future programming. Thanks for showing us this feature.
Determine if a Given Number is a Triangle Number
Similar Triangles - find the height of the tree
Back to basics 8 - Matrix Diagonals
Are all the three given point in the same line?
Generate N equally spaced intervals between -L and L
Next Higher Power of B
Number of Circles in a Number
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
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