Submitted by Tharsis101 t3_10nn59i in explainlikeimfive
otherestScott t1_j6d03us wrote
Reply to comment by betelguese_42 in ELI5: Why do imaginary numbers even need to exist? by Tharsis101
It’s not a bad name honestly, because “real numbers” also means something important in math and it excludes imaginary numbers
If we called them Bob numbers, you’d either have to change the name of “real numbers” to “non-Bob numbers” which isn’t great, or you would feel a lot less natural to exclude them.
It’s the same as rational vs irrational numbers. It’s not that pi or the square root of 2 is overly emotional, it’s just a convenient binary for mathematicians to use.
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