Add all the natural numbers below 1000 that are multiples of 3 or 5.
ℕ = { 1, 2, 3, … }
A = { x ∈ ℕ : x < 1000 }
B = { y ∈ A : 3 | y ⋃ 5 | y }
∑ B
| // Write a C function whose return value is an integer between one and five: | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <time.h> | |
| int sample(int minimum, int maximum) | |
| { | |
| int random = rand(); |
Add all the natural numbers below 1000 that are multiples of 3 or 5.
ℕ = { 1, 2, 3, … }
A = { x ∈ ℕ : x < 1000 }
B = { y ∈ A : 3 | y ⋃ 5 | y }
∑ B
| \documentclass{standalone} | |
| \usepackage{standalone} | |
| \usepackage{tikz} | |
| \newcommand { \U } { (-2, -2) rectangle ( 3, 2) (-2, 2) } | |
| \newcommand { \A } { ( 0, 0) circle ( 1) ( 0, 1) } | |
| \newcommand { \B } { ( 1, 0) circle ( 1) ( 1, 1) } | |
| \newcommand { \venn } { |
| grammar Grammar; | |
| fragment Uppercase : [A-Z] | '$' | '_' ; | |
| fragment Lowercase : [a-z] ; | |
| fragment Letter : Uppercase | Lowercase ; | |
| fragment Operator : [\u0020-\u007F]+ ; | |
| fragment Body : (Letter | [0-9])* ('_' Operator) ; | |
| fragment Decimal : '0' | [1-9] [0-9]* ; | |
| fragment Hexadecimal : '0' 'x' [0-9A-Fa-f]+ ; | |
| fragment Octal : '0' [0-7]+ ; |
| if [[ !(`date | grep NZDT`) ]]; then | |
| sudo ln -sf /usr/share/zoneinfo/Pacific/Auckland /etc/localtime | |
| fi | |
| sudo apt-get update | |
| sudo apt-get --yes upgrade | |
| sudo sed -i 's/#PasswordAuthentication no/PasswordAuthentication no/g' /etc/ssh/sshd_config | |
| sudo sed -i 's/PermitRootLogin yes/PermitRootLogin no/g' /etc/ssh/sshd_config | |
| sudo service ssh restart |
| % java PercolationStats 2 10000 | |
| mean = 0.666925 | |
| stddev = 0.11776536521033558 | |
| 95% confidence interval = 0.6646167988418774, 0.6692332011581226 | |
| mean = 0.665575 | |
| stddev = 0.11823733497392995 | |
| 95% confidence interval = 0.663257548234511, 0.6678924517654891 |
| #! /bin/sh | |
| ### BEGIN INIT INFO | |
| # Provides: nginx | |
| # Required-Start: $all | |
| # Required-Stop: $all | |
| # Default-Start: 2 3 4 5 | |
| # Default-Stop: 0 1 6 | |
| # Short-Description: starts the nginx web server | |
| # Description: starts nginx using start-stop-daemon |