TeWu

## Here values of secret_offset, secret_key1, secret_key2, plaintext_01, plaintext_02 and plaintext_03 are set

require 'shift_ciphers'  # Library's code at: https://github.com/TeWu/shift-ciphers  (version 1.0.1)

caesar          = ShiftCiphers::Caesar.new(offset: secret_offset)
vigenere        = ShiftCiphers::Vigenere.new(secret_key1)
strong_vigenere = ShiftCiphers::HardenedVigenere.new(secret_key2)

p caesar.encrypt(plaintext_01)  # => "!M;BL;AtKw;MH;ytBEd;uNM;BM;BL;PHKLx;GxOxK;MH;AtOx;MKBxw;MH;LNvvxxwe;1_AxHwHKx;)HHLxOxEM"
p vigenere.encrypt(plaintext_02)  # => "qit$b#D1R-js+ntrt'-7U-hy+bImv-Ehw-Hv/z9$T:l6&qty\".{Go{m1@p"

TeWu

Homeopatia

• Homeopathy Explained – Gentle Healing or Reckless Fraud?

• Gdy pomaga coś co nie powinno - efekt placebo (+homeopatia)

• Homeopatia: co i jak?

  • Dowód anegdotyczny: czym jest i dlaczego nie ma żadnej wartości? - Alternatywa #1, Alternatywa #2

TeWu

Naprawa MBR Windows 10

1. Włóż płytę instalacyjną Windows 10 do napędu DVD
2. Uruchom komputer ponownie, bootując go z tej płyty
3. Po uruchomieniu instalatora kliknij w Repair your computer w lewym dolnym rogu okienka instalatora
4. Wybierz Troubleshoot -> Command Prompt by otworzyć konsolę
5. Wykonaj w konsoli następujące polecenia:

bootrec /FixMbr

TeWu

observations <- c(17.13, 17.71, 17.51, 19.39, 17.70, 19.15, 17.17, 18.48, 21.71, 19.55, 17.63, 18.55, 14.77)
tr <- t.test(observations, mu=18, conf.level=0.99)
tr  # print Test Results

# Plot t-distribution
stderr <- sqrt(var(observations)/length(observations))
x <- seq(-4, 4, by=0.01)
y <- dt(x, df=tr$parameter)
plot(x, y, type='l')
abline(v=0, col="black")

TeWu

##
# Polynomial interpolator using both sample values and sample derivatives.
# Source: https://commons.apache.org/proper/commons-math/javadocs/api-3.6/org/apache/commons/math3/analysis/interpolation/HermiteInterpolator.html
#
class HermiteInterpolator

  def initialize(*points_and_derivatives)
    @abscissae = []
    @top_diagonal = []

TeWu

##
##  Some non-binding thoughts on krpc-rb Events API.
##    (This API Concept is probably too high-level.)
##

KRPC.connect do |client|
  v = client.space_center.active_vessel

  # Fires once
  v.orbit.once :apoapsis_altitude, :change do |apo|

TeWu

///
///  Factorial function in lambda calculus - implemented in JS
///

//// Lambda calculus
// zero = λs.λz.z
// succ = λn.λs.λz.s (n s z)
// mult = λn.λm.λs.m (n s)
// pred = λn.λf.λx.n(λg.λh.h (g f))(λu.x)(λu.u)
// minus = λn.λm.m pred n

TeWu

module RolesBitmaskSerializerSupport
  extend ActiveSupport::Concern

  RolesBitmaskSerializer = GamesBox::Serializers::RolesBitmaskSerializer

  class_methods do
    
    def serialize_as_roles_bitmask(deserialized_attr, serialized_attr)
      deser_setter_name = "#{deserialized_attr}=".to_sym
      ser_setter_name = "#{serialized_attr}=".to_sym

TeWu

setInterval(() => $('body').css('background-color', "#"+(Math.round(Math.random()*1000000))),500)

TeWu

##  INSPIRED BY: Eigenvectors and eigenvalues | Essence of linear algebra, chapter 10
##               https://www.youtube.com/watch?v=PFDu9oVAE-g&feature=youtu.be&t=16m28s

require 'bigdecimal'

def fib(n, accuracy = 100)
  n = BigDecimal.new(n - 1)
  accuracy = 10 if n < 80
  sqrt5 = BigDecimal.new(5).sqrt(accuracy)  # sqrt(p1) - Returns the square root of the value. If p1 is specified, returns at least that many significant digits.
  # Where all the 'magic' happens: