Many of the computational requirements for an introductory physics course involve trigonometry. This module provides a brief tutorial on trigonometry fundamentals that is designed to be accessible to blind students.
Table of contents
Preface
General
This module is part of a collection of modules designed to make physics
concepts accessible to blind students.
If you opened this page in the context of the book, a Table of Contents for
the book (or collection) should be available above and to the left of thisparagraph. Otherwise, click
here to open the book at the beginning.
This book is intended to supplement but not to replace the textbook in an
introductory high school or college physics course.
Many of the computational requirements for an introductory
physics course involve trigonometry. This module provides a brieftutorial on trigonometry fundamentals that is designed to be accessible to blind
students.
Prerequisites
In addition to an Internet connection and a browser, you will need the
following tools (as a minimum) to work through the exercises in these modules:
- A graph board for plotting graphs and vector diagrams (
(External Link) ).
- A protractor for measuring angles (
(External Link) ).
- An audio screen reader that is compatible with your operating system,
such as the NonVisual Desktop Access program (NVDA), which is freelyavailable at
(External Link) .
- A refreshable Braille display capable of providing a line by line tactile output of information displayed on the computer
screen(
(External Link) ).
- The ability to create tactile graphics as described
here .
The minimum prerequisites for understanding the material in these modules
include:
- A good understanding of algebra.
- An understanding of the use of a graph board for plotting graphs and
vector diagrams (
(External Link) ).
- An understanding of the use of a protractor for measuring angles (
(External Link) ).
- A basic understanding of the use of sine, cosine, and tangent from
trigonometry (
(External Link) ).
(The purpose of this module is to help you to gain such an understanding.)
- An introductory understanding of JavaScript programming (
(External Link) and
(External Link) ).
- An understanding of all of the material covered in the earlier modules
in this collection.
- An understanding of the manual creation and use of tactile graphics as
described
here .
Viewing tip
I recommend that you open another copy of this document in a separate
browser window and use the following links to easily find and view the figuresand listings while you are reading about them.
-
Figure 1 . Output for script in Listing 1.
-
Figure 2 . Mirror image from file Phy1020b1.svg.
-
Figure 3 . Page Setup for file Phy1020b1.svg.
-
Figure 4 . Text values for Braille keys in file Phy1020b2svg.
-
Figure 5 . Output for script in Listing 2.
-
Figure 6 . Output for script in Listing 3.
-
Figure 7 . Interesting sine equations.
-
Figure 8 . Interesting cosine equations.
-
Figure 9 . Output for script in Listing 5
-
Figure 10 . Two very important equations.
-
Figure 11 . Interesting tangent equations.
-
Figure 12 . Output for script in Listing 7.
-
Figure 13 . Sinusoidal values at 90-degree increments.
-
Figure 14 . Sinusoidal values at 45-degree
increments.
-
Figure 15 . Sinusoidal values at 22.5-degree
increments.
-
Figure 16 . Mirror image plot of cosine and sine curves from the file named Phy1020a1svg.
-
Figure 17 . Algebraic signs versus quadrants.
-
Figure 18 . Output from the code in Listing 9.
-
Figure 19 . Normal image from file Phy1020b1.svg.
-
Figure 20 . Normal image plot of cosine and sine curves from the file named Phy1020a1svg.
