Sorry for the necro, but it is because Desmos uses "IEEE-754 double-precision floating point numbers", which are 64 bits in size. I found this on
some wiki, and it checks out.
I'm a math guy but I'd rather search the internet rather than solve for mystery problem.
53 are used for mantissa (52 for data, 1 for the sign) and the other 11 are used for exponents.
The highest number the significand, mantissa, whatever the fuck you wanna call it, can represent is just under 1, but not 1.
The 11-bit signed integer can only hold 2^11 values, or 2048. If you noticed, it's even. One value has to go to 0, so the rest are left with 2047 values. Odd.
So, the range for positive and negative numbers have to range between -1024 to 1023.
Why?
It uses
two's complement method, using the binary digit with the greatest value as the sign (what determines positive/negative) which is 1024.
The biggest binary digit of an 11-bit signed integer would be 1024, represented as 10000000000 in base 2.
A walk through the two's complements see that the absolute binary representation of 1024 is replaced by -1024 in the two's complement method.
Let's say we were solving for -1024 using this method. You would start with its absolute binary representation, 10000000000.
You'd flip all bits, this gets you 01111111111. Then we'd add 1 to the number, which gives us 10000000000.
Obviously, you can't have -1024 = 1024, so 1024 loses out in the end.
You'll find that 2^3^4^5 = 1024. 1024 is not a value that the 11-bit can calculate based on the system in place.
The highest number you can find would be .999(shitload of 9s later) * 1^1023. So since 1^1024 is outside the bounds of the system, it is undefined.
Also, the first and third pictures are the same.