What for? Badges?
Replace NaNs with the number that appears to its left in the row.
surface of a spherical planet
Convert a vector into a number
Generate a random matrix A of (1,-1)
Sum the numbers on the main diagonal
05 - Vector Equations 3
02 - Vector Variables 3
01 - Scalar variables
04 - Scalar Equations 3
05 - Vector Equations 2
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