
Is $\log0$ defined or not? - Mathematics Stack Exchange
2019年11月21日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Why are logarithms not defined for 0 and negatives?
I can raise $0$ to the power of one, and I would get $0$. Also $-1$ to the power of $3$ would give me $-1$. I think only some logarithms (e.g log to the base $10$) aren't defined for $0$ and negat...
Why I can't calculate $0*log(0)$ but can $log(0^0)$
If you need to calculate $0 \log 0$, you're probably either: Doing something wrong; Implementing an algorithm that explicitly states that $0 \log 0$ is a fib that doesn't mean "compute zero times the logarithm of zero", but instead something else (e.g. "zero")
Why can we define - Mathematics Stack Exchange
2020年2月28日 · $\begingroup$ Defining $0 \log \frac{0}{0}=0$ makes sense if we treat it as the difference between a (negative) entropy term and a (negative) cross entropy term.
logarithmic find value N. - Mathematics Stack Exchange
$\log N=\frac{1}{2}(\log24-\log0.375-6\log3)$ find value N. I did it below step $\log N=\frac{1}{2}(\log64-6\log3)$ $\log N=\frac{1}{2}(\log0.877)$ I don't know how ...
logarithms - What is $\log(0/x)$? - Mathematics Stack Exchange
2016年4月1日 · EDIT: Well, $\log0$ is not imaginary solution either. The other one with $\log\frac1x$ is correct though. There are actually more than one proof for it: $$\log\frac1x=\log x^{-1}=-1\log x=-\log x$$ $$\log\frac1x=\log1-\log x=0-\log x=-\log x$$
Is there proof show that $\\log x$ is undefined and make no sense …
2015年6月13日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Why is $n>\\frac{-\\log 13}{\\log 0.8}=n \\log0.8<-\\log13$
$$ n \log0.8 < -\log13 $$ $$ n > \frac{-\log13}{\log0.8} $$ I saw this type of rearranging earlier in the book and thought it might be a typo but seeing it a second time confirms there's something I'm not understanding. Why has the sign changed although we have simply divided both sides by $\log0.8$? Thanks in advance
logarithms - Is $\log { (0.99\dots)}$ negative or it is $ 0 ...
2018年2月25日 · It is known that $0.99\dots =1$, but I'm afraid to say by substitution if it is allowed that $\log{(0.99\dots)}=0$ , then is it negative or equal $0$ ?
How do you solve this equation …
2018年3月6日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.