Health Sciences 2801A/B Lecture Notes - Lecture 1: Celsius, Linear Continuum, Natural Number

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 2801A/B
• Professor: Christopher Lee

Document Summary

Integers: -3, -2, -1, 0, 1, 2, 3: natural, whole, and integers count countable things, a linear continuum (number line) allows for ambiguity and more than countable things. Includes the family of real numbers: rational or irrational, rational: based on a ratio, a number that can be expressed as a ratio of 2 integers, has a finite number of digits or a repetitive sequence. Irrational: does not end or repeat a sequence (ex. Numbers are usually written using numerals: decimal numerals (0,1,2,3,4,5,6,7,8,9, hexadecimal numbers (0-9, a-f, roman numbers (i, v, x, l, c, d, m) Sometimes numerals are not numbers - meaning conveys something other than numerical value. Course code identifies the course itself, not just a number. Measurement: we measure the world around us by using indicators to represent constructs, construct: a conceptual continuum that describes our experience of the world, ex. Happiness is a construct, an idea that we use to think about the world.