Editing Order of operations (section)

===Unary minus sign===
There are differing conventions concerning the [[unary operation]]&nbsp;{{nowrap|'−'}} (usually pronounced "minus"). In written or printed mathematics, the expression −3<sup>2</sup> is interpreted to mean {{nowrap|−(3<sup>2</sup>) {{=}} −9}}.{{r|BS}}{{r|ARGS}}

In some applications and programming languages, notably [[Microsoft Excel]], [[PlanMaker]] (and other spreadsheet applications) and [[bc programming language|the programming language bc]], unary operations have a higher priority than binary operations, that is, the unary minus has higher precedence than exponentiation, so in those languages −3<sup>2</sup> will be interpreted as {{nowrap|(−3)<sup>2</sup> {{=}} 9}}.{{r|Microsoft 2005}} This does not apply to the binary minus {{nowrap|operation '−';}} for example in Microsoft Excel while the formulas <code>=-2^2</code>, <code>=(-2)^2</code> and <code>=0+-2^2</code> return 4, the formulas <code>=0-2^2</code> and <code>=-(2^2)</code> return −4.