Unary division: Difference between revisions
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A minus sign with nothing on the left represents negation of whatever's on the right. | A minus sign with nothing on the left represents negation of whatever's on the right. | ||
Why isn't there a unary division symbol? | Why isn't there a unary division symbol?<ref>[https://twitter.com/christianp/status/478815299081633793 Tweet by Christian Lawson-Perfect]: "We have unary minus, i.e. "-2" is the same as "0-2". Why don't we have unary division, i.e. "÷2" could mean the same as "1÷2"?"</ref><ref>[https://twitter.com/christianp/status/1061949551949557760 Tweet]: "Years after impishly proposing a 'unary division' operator at big #mathsjam, I find myself actually needing to introduce one in my real work."</ref> | ||
\[ \div x = \frac{1}{x} \] | \[ \div x = \frac{1}{x} \] | ||
The page on wheels<ref>https://ncatlab.org/nlab/show/wheel</ref> in the nLab suggests exactly this. | |||
[[Category:Inconsistencies]] | [[Category:Inconsistencies]] | ||
Latest revision as of 04:47, 11 August 2021
A minus sign with nothing on the left represents negation of whatever's on the right.
Why isn't there a unary division symbol?[1][2]
\[ \div x = \frac{1}{x} \]
The page on wheels[3] in the nLab suggests exactly this.
- ↑ Tweet by Christian Lawson-Perfect: "We have unary minus, i.e. "-2" is the same as "0-2". Why don't we have unary division, i.e. "÷2" could mean the same as "1÷2"?"
- ↑ Tweet: "Years after impishly proposing a 'unary division' operator at big #mathsjam, I find myself actually needing to introduce one in my real work."
- ↑ https://ncatlab.org/nlab/show/wheel
