Class 6a ruby math
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This document outlines a math hacks introduction for Ruby class 6A, covering basic math operations and formatting techniques. It includes advanced topics such as exponents, roots, absolute values, modulus, and the use of random values and pi. Additionally, it presents a project focused on creating a calculator/converter, detailing objectives, grading criteria, and the due date.
Class 6a ruby math
- 1. MATH HACKS IN RUBY Class 6a – Ruby Math
- 2. Introduction Ruby Basics Puts Gets Some basic math operations “+”, “-”, “*”, “/” Formatting and Advanced Math Line formatting (right/left justification, centering) Exponents, roots, the Math Object
- 3. Agenda Review the Assignment 3 solution Add formatting to make interface and output more attractive To make interface more intuitive To make output more functional Advanced Math Exponents and Roots Absolute and Modulus Math::pi and rand
- 4. Formatting Example – our class average assignment Preferred format/ line length of 60 Student Marks Sam 75 Susan 78 George 87 Anne 92 Joe 67 _____ _____ Average 76.5
- 5. Demonstration IPO Input Processing Output Code
- 6. Ruby Math: Exponent and Root Exponent Notation a**b a to the power of b Example Root Using Math Object Math.sqrt(val) Using math formula x**0.5
- 7. Ruby Math: Absolute & Modulus Absolute Notation a=x-y.abs Example Modulus (gizinta, what’s left?) Notation a=x%y Example: Kids Inc. Summer Camp
- 8. Ruby Math: Random & Pi Random Use: rand(max_val) Result is zero based Example Math:Pi Use Math::Pi*(val) Example:Volume of a cylinder IPO first?
- 9. Summary Exponent (a**b) Root (sqrt or a**b/c.to_f) Absolute (abs) Modulus (a%b) Random (rand(x)) Pi (Math::PI)
- 10. Project 1: Calculator/Converter Objectives Apply mathematical formulas to real problems Apply a programmatic approach to a solution Apply basic ruby mathematical operations Apply basic ruby formatting Grading – in 3 parts Due Date:Week of Nov 15 NextWeek: Part of class for project work, problems, challenges, ideas