In the context of artificial neural networks, the rectifier is an activation function defined as the positive part of its argument:
f
(
x
)
=
x
+
=
max
(
0
,
x
)
,
{\displaystyle f(x)=x^{+}=\max(0,x),}
where x is the input to a neuron. This is also known as a ramp function and is analogous to half-wave rectification in electrical engineering.
This activation function was first introduced to a dynamical...
Powers and Squares code-golf math
It is a widely-cited fact that 69 is the only number that uses up all of the decimal digits of 0 to 9.
69² = 4761
69³ = 328509
A possible input to find this number is 0123456789, because it at least has one occurence of every number in this number range.
The...
Is this a circular step sequence? code-golf decision-problem sequence
Background
We define a circular step sequence of order \$n\$ as follows:
$$
a_1, a_2, \dots, a_n = \text{Permutation of } 1 \dots n \\
b_i = \min ( |a_{i+1} - a_i|, n-|a_{i+1} - a_i| ), 1 \le i < n \\
\text{Circular step seq...
Task
Given a positive integer n, draw the corresponding rocket.
Examples
From n = 1 to 4 the rockets are below. For your program's output, the trailing newline after a rocket is optional.
|
/ \
*---*
| o |
| o |
*---*
/_\
|
/ \
/ \
*-----*
| o o |
| o o |
| o o |
| o o |
*-----*
...
Let‘s golf it to the max!
So I wondered why there is no forkbomb on the web for dart... so I created one. I started to golf it to:
Dart, 99 bytes
import'dart:isolate';class f{static k(o){f().r();} r(){for(;;)Isolate.spawn(k,0);}}main(){f().r();}
Try it online!
Any suggestions or golfing ev...
gs2, 15 bytes
I outgolfed Dennis!
CP437:
spooky•me♣╨V↕0B
Hex dump:
73 70 6f 6f 6b 79 07 6d 65 05 d0 56 12 30 42
At the start of the program, STDIN is pushed (e.g. the string "3") and stored in variable A. The first ten bytes of the program push two strings, "spooky" and "me", to the stack...
Based on this Numberphile video
A self-locating string is a number (or set of numbers) in a decimal expansion which corresponds to its location, from the start of the decimal.
For example, take the number:
0.2734126393112
Here, we can identify certain items quickly, e.g:
0.27 _3_ _4_ 1263 _...
