3 ms·
The "multiplying changing numbers" analogy made me think of "integrating really is just calculating the average", ie integrating f(x)dx is like taking the avera
by lutorm 17y ago
The "multiplying changing numbers" analogy made me think of "integrating really is just calculating the average", ie integrating f(x)dx is like taking the average of f(x) and multiplying by the size of the interval.
- christopherolah 17y agoI believe that the integral symbol with a dash through it is equivalent to an integral divided by the interval... Couldn't find any confirmation online, though. Even if it isn't, it is a nice notation. Maybe someone could confirm
- tome 17y agoYeah that's exactly what it is! In probability theory, the expectation of a random variable is just its integral with respect to a probability measure.