WebMath: standard notation for negative numbers?

[Michael Gerard Richardson]

In my experience the "unraised" subtraction sign is
the standard worldwide for both the the unary operation
described by your enquirer as "negative" and the binary
operation "subtraction" - the "raised minus" being used
in some elementary discourses where the double use of
the "ordinary" minus might be considered confusing to
students.

Mike Richardson

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