Why can we multiply different units but not add them?
113516
Why can we only add or subtract things of the same dimension (meters/second, newtons, etc)?
30117
Adding and subtracting doubles are giving strange results
96865
Division rules for other number systems?
43
Is floating point math broken?
150435
How do I make Units efficiently?
55095
Why can't we separate fraction powers in euler's formula?
135727
Error Measures, why is the sum halved? why not use the absolute value?
1739
Adding two numbers concatenates them instead of calculating the sum
124136
Why does the division algorithm work for converting between number bases?
113712
Boosts are non-unitary!
13688
Why are these numbers not equal?
158110
Adding two numbers without using operators
135248
How can I add/subtract/multiply/divide properties in the Game Engine?
63307
Generating sublists using multiplication ( * ) unexpected behavior
79360
how does multiplication differ for NumPy Matrix vs Array classes?
116457
Should I use multiplication or division?
1999
Mathoverflow - why so different