C:\Users\Conor O'Brien\Documents\Programming\node js
λ node goat.js
fs.js:60
throw err; // Forgot a callback but don't know where? Use NODE_DEBUG=fs
^
Error: ENOENT: no such file or directory, rename 'C:\Users\Conor O'Brien\Documents\Programming\node js\goat.js' -> 'C:\Users\Conor O'Brien\Documents\Programming\node js\sj.taog\sj edon\gnimmargorP\stnemucoD\neirB'O ronoC\sresU\:C'
at Error (native)
7-segment differences
code-golfnumbercounting
I think most people around here know what a 7-segment display for digits is:
_ _ _ _ _ _ _ _
| | | _| _| |_| |_ |_ | |_| |_|
|_| | |_ _| | _| |_| | |_| _|
We can define the 7-segme...
Is it known whether the equation $A^2-(x^2+3)B^2=1$ has a solution $A,B\in{\mathbb Q}(x)$ with $B\neq 0$ ?
My thoughts : I think that there is no solution, as the fundamental solution of $A^2-(x^2+3)B^2=1$ for $x\in {\mathbb Z}$ seems to vary uncontrollably.
