Question

Is there any way to solve this equation for $x$?: $\sum_{k\in K} e^k \left(\frac{a}{(1+be^{c(x+k)})}-d\right)=0$

score 68 · Answer 1 · 2026-03-27 14:52:33

68

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Is there any way to solve this equation for $x$?: $\sum_{k\in K} e^k \left(\frac{a}{(1+be^{c(x+k)})}-d\right)=0$

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List Question

Is there any way to solve this equation for $x$?: $\sum_{k\in K} e^k \left(\frac{a}{(1+be^{c(x+k)})}-d\right)=0$

Need help finding a conversion between units

Finding Date Conversion Rate Logic

Symmetry in Probability: Dropping pins on a line segment; calculate average length of interval

Interesting PDE $D^3=\mathbf 0$: a generalization of conic curve

Expected number of cards fixed in a deck after a certain operation, Paul Zeitz, 3.1.28, pg 69, Art and Craft of Problem Solving

How to construct in interesting problem from a desired sequence, instead of vice versa?

How would you prove $\sum _{n=2}^{\infty } (-1)^n \left(n^{1/n}+\eta '(n)-\frac{\log (n)}{n-1}-1\right)+\eta '(1) =$ the MRB constant

Can we prove that repdigit-numbers cannot be Carmichael-numbers?

How can we find a Carmichael number near a huge given number?

Can any of the players force a win?

Ratio between largest and smallest prime factor

Exercise 1-28 A high school lottery uses two sets of numbered balls...

Artifacts of mathematical logic

Is there a formula for TARDIS numbers?

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