in your test suite it seems odd that rpz('a','b','-') is interpreted as 'a-b' while rpz('a','b','/') is interpreted as 'b/a' (instead of 'a/b'). Same goes for rpz('a','b','%') which is interpreted as 'b%a' instead of 'a%b'. Last, your last test case rpn(z(1),'+',z(2),'*',z(1),z(3),'-',z(4),z(5),'%','*') is plain weird... it should probably read rpn(z(1),z(2),'+',z(1),'*',z(3),'-',z(4),z(5),'%','*') instead...
Thank you for your comments; I will update the description and fix last test case.
I will retire the last test case for the problem.
I have an rpn solver but it only accepts strings
Find the two most distant points
Bottles of beer
Solve the set of simultaneous linear equations
Set the array elements whose value is 13 to 0
intersection of matrices
Numbers at bit-boundary
Is the paranthesis sequence balanced ?
Greed is good - Simple partition P[n].
All Humans are Created Equal - Pareto Equality
Split bread like the Pharaohs - Egyptian fractions and greedy algorithm
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