Write a function that converts elements in a numeric array into a different class. Example:
a = [1:5]; % class: double
b = convertto(a,'uint32');
1 2 3 4 5
No str2func allowed? Pity...
Solve the Sudoku Row
Rotate input square matrix 90 degrees CCW without rot90
Detect a number and replace with two NaN's
Test if two numbers have the same digits
Simple equation: Annual salary
Index of neighbor pixel with steepest gradient
Find smallest integer type to accommodate your number
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