Arithmetic operators and math

- [Instructor] As I explained previously,…programming, in its most basic form,…is taking some data, doing something with it,…and putting the results back.…This is done using operators,…and in JavaScript, we have a bunch of operators…that look familiar, but don't always do…exactly what you expect.…You've already seen one of these, the equals symbol.…Outside of programming, an equals symbol…denotes the result of a math equation,…but in Javascript, it is an assignment.…If we put a variable on the left of an equals sign…and something else on the right,…whatever is on the right will be assigned…to that variable,…effectively put into the variable container.…

In Javascript, we have the standard math operators,…plus, minus, multiply, and divide.…We use these pretty much the way you'd expect.…If you want to calculate the sum of a and b,…you just type in a + b.…Subtract one from the other by typing in a - b,…multiply, a * b, so the asterisk is multiply,…and divide a / b.…JavaScript follows standard algebra rules,…so if I type in a + b * c,…