zapstar

Dependent variable = y what we predict
Independent variable = x's. What we use to predict y.

Baseline Prediction: We take the average of all y in the training set and predict that no matter what x is input into the model.

One variable linear regression:
    y_i = B_0 + B_1 * x_i + e_i

    y_i = i'th independent variable
    B_0 = intercept term (the value of y when x is 0)

zapstar

import java.util.Map;
import java.util.HashMap;

public class BitBoolean {
    
    //Holds boolean data as bits
    //Each byte can hold 8 boolean values
    //So index = booleanDataIndex + booleanMappingIndex
    //booleanDataIndex = index/8
    //boleanMappingIndex, see booleanMapping variable

zapstar

# Syntax: All in one line or by escape characters
#   [   <some expression to be evaluated and put in another list>
#       for <some iterating variable in the list>
#       in  <some list>
#       if  <some condition holds true>
#   ]

mylist = [10,20,30,40,50,60,70,80,90,100]

# create a new list containing variables in the list divided by 10

zapstar

Logic: Language and Information 1

Propositions: Fundamental units of information. You can assert/deny, agree/disagree, believe/not believe

---

Connectives

• ~A is true only when A is false
• A & B is true, only when both A and B are true

zapstar

# Really cool algorithm I learnt from a blog somewhere
# Also sometimes called russian's peasents algorithm

def fast_multiply(a,b):
    z=0;
    while a > 0:
        if a % 2 == 1:
            z = z + b
        a = a >> 1
        b = b << 1

zapstar

import java.util.LinkedList;

/**
 * @author thiru
 *
 */
public class SecondLargest {

	private class TreeNode {
		int item;

zapstar

# Simple script to figure out whether a site is up or not

TOOL_SITE="http://www.isup.me/"

if [ $# -ne 1 ]
then
  echo "Incorrect arguments specified"
  exit 1
fi

zapstar

// This is the MongoDB tutorial from http://try.mongodb.org

// Get started with `help`
// To try out an interactive tutorial type `tutorial`

// This shell is a (limited) javascript interpreter, so any commands you are familiar from javascript should work here.  Try out: 
  var a = 5;
  a * 10;
  for(i=0; i<10; i++) { print('hello'); };
// You can move onto the next step anytime by typing `next` 

zapstar

""""""""""""""""""
" PACKAGES START "
""""""""""""""""""

set nocompatible

call plug#begin('~/.vim/plugged')
" Start adding Vundle plugins from here

" Package manager itself

zapstar

#include <stdio.h>

void max2(int a, int b, int c) {
	int first, second;
	printf("a = %d, b = %d, c = %d\n", a, b, c);
	if (a > b) {
		second = a;
		if (a > c) {
			first = a;
			if (b > c) {