Using "×" word in html changes to × Asked 12 years, 11 months ago Modified 2 years, 2 months ago Viewed 246k times
Someone recently asked me why a negative $\times$ a negative is positive, and why a negative $\times$ a positive is negative, etc. I went ahead and gave them a proof by contradiction like this: As...
Your title says something else than "infinity times zero". It says "infinity to the zeroth power". It is also an indefinite form because $$\infty^0 = \exp (0\log \infty) $$ but $\log\infty=\infty$, so the argument of the exponential is the indeterminate form "zero times infinity" discussed at the beginning.
How many times can I compress a file before it becomes corrupt? If the program you use to compress the file does its job, the file will never corrupt (of course I am thinking to lossless compression).
Since $\times$ is the official symbol for multiplying integers, this notation is in principle ambiguous: $2\times3=6$ would seem to imply $\Bbb R^ {2\times 3}=\Bbb R^6$, but the latter is not a space of matrices.
What is the notation for the set of all $m\times n$ matrices?
I'd even start with 0.5 times 3.5 -- it feels normal to add 0.5 to itself 3 times, then not-too-bad to add it once more 1/2 a time. That establishes "add 1/2 a time" is fine and fits the repeated-addition pattern.
arithmetic - 0.5 times 0.5 equals 0.25, but how does this work with ...
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