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Mariusz Gumienny gumienny

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  • Rzeszow, Poland
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gumienny / Effective_Engineer.md
Last active January 22, 2018 12:12 — forked from rondy/Effective_Engineer.md

FWIW: I didn't produce the content present here. I've just copy-pasted it from somewhere over the Internet, but I cannot remember exactly the original source. I was also not able to find the author's name, so I cannot give him/her the proper credit.

HOW TO STUDY

Effective Engineer - Notes

What's an Effective Engineer?

@gumienny
gumienny / gist:63b1840bce3ce448386927dee3615071
Created August 16, 2018 07:01 — forked from devtoor/gist:5eace73c3570b247341c99de60754c3a
Complete list of github markdown emoji markup

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gumienny / rgbToLab.js
Created August 24, 2018 11:39 — forked from Dammmien/rgbToLab.js
RGB to LAB
function rgbToLab( R, G, B ) {
R = ( R / 255 );
G = ( G / 255 );
B = ( B / 255 );
if ( R > 0.04045 ) R = Math.pow( ( R + 0.055 ) / 1.055, 2.4 );
else R = R / 12.92;
if ( G > 0.04045 ) G = Math.pow( ( G + 0.055 ) / 1.055, 2.4 );
else G = G / 12.92;
if ( B > 0.04045 ) B = Math.pow( ( B + 0.055 ) / 1.055, 2.4 );
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gumienny / rust.md
Last active September 29, 2018 07:52

1 from

fn main() {
    let s1 = String::from("hello");
    let (s2, len) = calculate_length(s1);
    println!("The length of '{}' is {}.", s2, len);
}

fn calculate_length(s: String) -> (String, usize) {
    let length = s.len(); // len() returns the length of a String
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gumienny / networking.md
Last active November 2, 2018 12:01
@gumienny
gumienny / bit-manipulation-hacks.md
Last active December 5, 2018 19:03
  • parzystość liczby x & 1
  • sprawdzenie czy dwa int-y mają przeciwny znak (x ^ y) < 0
  • dodanie 1 do int-a -~x
  • swap
x = x ^ y; // x^= y;
y = x ^ y;
x = x ^ y;
  • wyłączenie k-tego bitu x &amp; (~(1 &lt;&lt; (k - 1)))