This past spring, I took an interesting class as part of my master’s degree program titled ‘Circuits, Computation and Biology’. One of the many topics in the course was conditional permutations.
When performing a mathematical calculation by hand, what symbol do you use to signify division? Do you use a slash (/), a horizontal line with the numerator and divisor above and below, or the divide (÷) symbol? Personally, I use one of the first two, depending on the context. And, I can’t remember the last time I used ÷. However, a good estimate would be back in grade school.