1. Dave's Short Course In Trigonometry Covers basic definitions and concepts in beginning trigonomety.Category Kids and Teens School Time Math trigonometry...... Applications of trigonometry Astronomy and geography; Engineeringand physics; Mathematics and its applications. What is trigonometry? http://aleph0.clarku.edu/~djoyce/java/trig/

Dave's Short Trig Course Table of Contents Who should take this course? Trigonometry for you Your background How to learn trigonometry Applications of trigonometry Astronomy and geography Engineering and physics Mathematics and its applications What is trigonometry? Trigonometry as computational geometry Angle measurement and tables Background on geometry The Pythagorean theorem An explanation of the Pythagorean theorem Similar triangles Angle measurement The concept of angle Radians and arc length Exercises, hints, and answers About digits of accuracy Chords What is a chord? Trigonometry began with chords Sines The relation between sines and chords The word "sine" Sines and right triangles The standard notation for a right triangle Exercises, hints, and answers Cosines Definition of cosine Right triangles and cosines The Pythagorean identity for sines and cosines Sines and cosines for special common angles Exercises, hints, and answers Tangents and slope The definition of the tangent Tangent in terms of sine and cosine Tangents and right triangles Slopes of lines Angles of elevation and depression Common angles again Exercises, hints, and answers

2. S.O.S. Math - Trigonometry Guide to trigonometry sites provides links to functions, formulas, equations, and a table of trigonometric identities. CALCULUS AND trigonometry. The Derivatives of Trigonometric Functions http://www.sosmath.com/trig/trig.html

S.O.S. Homepage Algebra Calculus Differential Equations ... CyberBoard Search our site! S.O.S. Math on CD Sale! Only $19.95. Works for PCs, Macs and Linux. Tell a Friend about S.O.S. Books We Like Math Sites on the WWW S.O.S. Math Awards ... Privacy Concerns? TRIGONOMETRY Angle Measures Trigonometric Functions The magic identity The Addition Formulas ... SOLVING TRIGONOMETRIC EQUATIONS CALCULUS AND TRIGONOMETRY The Derivatives of Trigonometric Functions HYPERBOLIC TRIGONOMETRY The Hyperbolic Functions The Inverse Hyperbolic Functions Contact us Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA users online during the last hour

3. Trigonometry : Trigonometric Functions & Identities In Math trigonometry Click banner to visit sponsor Hide ads Advertise here. trigonometry Table of Contents http://www.syvum.com/math/trigonometry.html

Syvum Home K-12 SAT GRE ... More... '); document.write(' '); document.write(' Hide ads Advertise here Hide ads Advertise here Trigonometry Table of Contents Title Trigonometry Module 1: Trigonometric Functions Sin, Cos and Tan Functions Cosec, Sec and Cot Functions Practice Exercise for Trigonometry Module 1: Trigonometric Functions ... Contact Info

4. ThinkQuest Library Of Entries A brief overview of trigonometric terms and concepts. http://library.thinkquest.org/10030/trigcon.htm

Welcome to the ThinkQuest Internet Challenge of Entries The web site you have requested, Seeing is Believing , is one of over 4000 student created entries in our Library. Before using our Library, please be sure that you have read and agreed to our To learn more about ThinkQuest. You can browse other ThinkQuest Library Entries To proceed to Seeing is Believing click here Back to the Previous Page The Site you have Requested ... Seeing is Believing click here to view this site A ThinkQuest Internet Challenge 1997 Entry Click image for the Site Languages : Site Desciption Need a primer on math, science, technology, education, or art, or just looking for a new Internet search engine? This catch-all site covers them all. Maybe you're doing your homework and need to quickly look up a basic term? Here you'll find a brief yet concise reference source for all these topics. And if you're still not sure what's here, use the search feature to scan the entire site for your topic. Students Peter Oakhill College, Castle Hill Australia Suranthe H Oakhill College Australia Coaches Tina Oakhill College, Castle Hill

5. An Introduction To TRIGONOMETRY An introduction to trigonometry. Turning counterclockwise is the positive orientationin trigonometry. Angles are measured starting from the xaxis. http://www.ping.be/~ping1339/gonio.htm

An introduction to TRIGONOMETRY Definitions and basics Trigonometric circle and angles Trigonometric numbers of a real number t Basic formulas ... Calculations with inverse trigonometric functions Definitions and basics Trigonometric circle and angles Take an x-axis and an y-axis (orthonormal) and let O be the origin. A circle centered in O and with radius = 1, is called a trigonometric circle or unit circle. Turning counterclockwise is the positive orientation in trigonometry. Angles are measured starting from the x-axis. Two units to measure an angle are degrees and radians An orthogonal angle = 90 degrees = pi/2 radians In this theory we use mainly radians. With each real number t corresponds just one angle, and just one point P on the unit circle, when we start measuring on the x-axis. We call that point the image point of t. Examples: with pi/6 corresponds the angle t and point P on the circle. with -pi/2 corresponds the angle u and point Q on the circle. Trigonometric numbers of a real number t With t radians corresponds exactly one point p on the unit circle.

6. Trigonometry A listing of material is given below. Other tutorial materials in English and Maths are available at www.mimesis.net http://www.acts.tinet.ie/trigonometry_645.html

Prev Next Home ] Created 7/7/96 by jevans@tinet.ie Trigonometry A listing of material is given below. Other tutorial materials in English and Maths are available at www.mimesis.net Introduction Radian Measure Trig. ratios for acute angles ... Trigonometry of the triangle -Surface Links- Core Resources by Topic - Core and Options LC - Higher Level Leaving Certificate Mathematics ... Home

7. Mathematics Archives - Topics In Mathematics - Trigonometry Maintained by the University of Tennessee, this page provides links to several trigonometry guides. Find short courses and tutorials. trigonometry. Complex Numbers and trigonometry. ADD. KEYWORDS Tutorial, Angles and Triangles, Similar Triangles, http://archives.math.utk.edu/topics/trigonometry.html

Topics in Mathematics Trigonometry Complex Numbers and Trigonometry ADD. KEYWORDS: Tutorial, Angles and Triangles, Similar Triangles, Parallelograms, Polar Form, Negative of a Point, Subtraction, Conjugate, The Real and Imaginary Axes; Rectangular Form, Trigonometric Functions, Inverse Trigonometric Functions, Laws of Sines and Cosines SOURCE: Abraham P. Hillman, University Of New Mexico, Gerald L. Alexanderson, Santa Clara University and Mervin E. Newton, Thiel College TECHNOLOGY: PDF reader Easymaths ADD. KEYWORDS: Tutorials, Worksheets, Diagnostic tests SOURCE: Mathematics Web Association EMR - Exercises in Math Readiness ADD. KEYWORDS: Tutorial, Radian Measure, Trig Identities Frequently Asked Questions About Trigonometry ADD. KEYWORDS: Tutorial GCSE Mathematics ADD. KEYWORDS: Tutorial, Drill problems, Negative Numbers, Ratios, Fractions, Graphs, Probability, Algebra, Trigonometry, Functions and Sequences Geomath - Trigonometry ADD. KEYWORDS: Tutorial How to estimate Saturn's Mass and Distance The Interactive Learning Network - Trigonometry ADD. KEYWORDS:

8. Trigonometry Realms Education in mathematics and science. trigonometry Realms. Mathematics. Waves. Simple Harmonic Motion http://id.mind.net/~zona/mmts/trigonometryRealms/trigonometryRealms.html

Trigonometry Realms Mathematics Waves Simple Harmonic Motion Contents ... Home When you understand this animated diagram, Oh, no! Know Java. You shall understand the sin(x). Overview Quick view of definitions and graphs of trigonometric functions. Introduction Detailed explanation relating the basic trigonometric functions to the right triangle. Multiple choice problems concerning introductory trigonometry. Common Angles in a Circle Values in degrees and radians for several usual angles from to 360 degrees, (or to 2Pi radians). Point Definitions for Trig Functions Definitions of trig functions based on an (x, y) point on the terminal side of the input angle to the function. Degrees, Minutes, and Seconds How to go back and forth between a decimal number representation of an angle's measurement and a representation of the measurement in degrees, minutes, and seconds. The Radian Often in mathematics angles are measured in radians rather than in degrees. This section explains the radian and its relationship to the degree. Solvers Right Triangle Solvers Mathematics Waves Simple Harmonic Motion ... E-mail

9. Basic Trigonometry Cosine, sine and tangent are defined. The Pythagorean thereom is illustrated as well the number of Category Kids and Teens School Time Math trigonometry......BASIC trigonometry. THE RIGHT TRIANGLE. For a triangle to be calleda right triangle, one of the interior angles must be 90 degrees. http://abe.www.ecn.purdue.edu/~agen215/trig.html

BASIC TRIGONOMETRY THE RIGHT TRIANGLE For a triangle to be called a right triangle , one of the interior angles must be 90 degrees. The sum of the interior angles must be 180 degrees , as with all triangles. TRIGONOMETRIC FUNCTIONS PYTHAGOREAN THEOREM Given the length of the side opposite and the side adjacent of a right triangle, the hypotenuse can be calculated by the following formula: You can actually find any third side of a triangle, if the other two sides are known. SUM OF INTERIOR ANGLES If "n" is the number of vertices (corners) of a closed shape, the sum of the interior angles can be found by: What is the sum of the interior angles for the fourth shape above? Because it has four vertices, (4-2) * 180 = 360 degrees, like any four-sided shape. GRADE AND PERCENT GRADE To calculate the grade, use the following formula: For this example, the grade equals (25/500) = 0.05 The percent grade equals (25/500) * 100 = 5% CONVERTING MAP AREA TO FIELD AREA If you are dealing with an area, in which the unit is square feet, or some such unit, you must square the scale of the map to calculate the proper area. Field Area = Map Area * (Map Scale)^2 So if the map has a scale of 1 in. = 2000 ft., and you measure a field to have a map area of 7.0 square inches, the total area is:

10. What Is Trigonometry What is trigonometry? trigonometry as computational geometry. trigonometrybegan as the computational component of geometry. For http://aleph0.clarku.edu/~djoyce/java/trig/what.html

What is trigonometry? Trigonometry as computational geometry Angle measurement and tables If there is anything that distinguishes trigonometry from the rest of geometry, it is that trig depends on angle measurement and quantities determined by the measure of an angle. Of course, all of geometry depends on treating angles as quantities, but in the rest of geometry, angles aren't measured, they're just compared or added or subtracted. Trigonometric functions such as sine, cosine, and tangent are used in computations in trigonometry. These functions relate measurements of angles to measurements of associated straight lines as described later in this short course. Trig functions are not easy to compute like polynomials are. So much time goes into computing them in ancient times that tables were made for their values. Even with tables, using trig functions takes time because any use of a trig function involves at least one multiplication or division, and, when several digits are involved, even multiplication and division are slow. In the early 17th century computation sped up with the invention of logarithms and soon after slide rules. With the advent of calculators computation has become easy. Tables, logarithms, and slide rules aren't needed in trigonometric computations. All you have to do is enter the numbers and push a few buttons to get the answer. One of the things that used to make learning trig difficult was performing the computations. That's not a problem anymore!

11. An Introduction To TRIGONOMETRY Definitions, basics, functions, and other concepts necessary to understand basic trigonometry. http://www.ping.be/math/gonio.htm

An introduction to TRIGONOMETRY Definitions and basics Trigonometric circle and angles Trigonometric numbers of a real number t Basic formulas ... Calculations with inverse trigonometric functions Definitions and basics Trigonometric circle and angles Take an x-axis and an y-axis (orthonormal) and let O be the origin. A circle centered in O and with radius = 1, is called a trigonometric circle or unit circle. Turning counterclockwise is the positive orientation in trigonometry. Angles are measured starting from the x-axis. Two units to measure an angle are degrees and radians An orthogonal angle = 90 degrees = pi/2 radians In this theory we use mainly radians. With each real number t corresponds just one angle, and just one point P on the unit circle, when we start measuring on the x-axis. We call that point the image point of t. Examples: with pi/6 corresponds the angle t and point P on the circle. with -pi/2 corresponds the angle u and point Q on the circle. Trigonometric numbers of a real number t With t radians corresponds exactly one point p on the unit circle.

12. Geometry Contents Covers rules for angles, right triangles and plane figures. Also, has a trigonometry section. http://library.thinkquest.org/10030/geocon.htm?tqskip1=1&tqtime=0420

13. Problems About Trigonometry Problems about trigonometry. read the solution. Problems about trigonometry.Level 1 problems. Calculate cos(3u) in terms of cos(u). http://www.ping.be/~ping1339/Pgonio.htm

Problems about trigonometry READ THIS FIRST Problems about trigonometry Level 1 problems Level 2 problems ... Level 3 problems READ THIS FIRST If a problem is solved. It is not 'the' answer. No attempt is made to search for the most elegant answer. I highly recommend that you at least try to solve the problem before you read the solution. Problems about trigonometry Level 1 problems Calculate cos(3u) in terms of cos(u) cos(2u+u) = cos(2u)cos(u)-sin(2u)sin(u) = (cos (u)-sin (u))cos(u)-2sin(u)cos(u)sin(u) = cos (u) - sin (u)cos(u)-2sin (u)cos(u) = cos (u) -3sin (u)cos(u) cos (u) -3cos(u)+3cos (u) 4cos (u) -3cos(u) In the same way sin(3u) = -4sin (u) -3sin(u) prove that : cos(t)+sin(t) cos(2t) - = - cos(t)-sin(t) 1- sin(2t) cos(2t) = 1- sin(2t) cos (t)-sin (t) (cos(t)-sin(t))(cos(t)+sin(t)) - = = 1-2sin(t)cos(t) cos(t)cos(t)-2sin(t)cos(t)+sin(t)sin(t) (cos(t)-sin(t))(cos(t)+sin(t)) - = (cos(t)-sin(t))(cos(t)-sin(t)) cos(t)+sin(t) cos(t)-sin(t) show that sin(p)-sin(q) p+q = cot(-) cos(q)-cos(p) 2 sin(p)-sin(q) = cos(q)-cos(p) 2cos((p+q)/2)sin((p-q)/2) = -2sin((p+q)/2)sin((q-p)/2) cos((p+q)/2) = sin((p+q)/2) p+q cot(-) 2 Solve (sin(2a)).x

14. Answering Mathematics Helper, Tests And Tutorial On Fuzzy Logic And Sets Exercise tool to practice addition, subtraction, multiplication, division, trigonometry and fuzzy logic problems. http://www.answermath.com/

Ever wonder how fast you are?.... well in this site you can actually test yourself in various exercises! such as adition, subtractions, multiplications, divisions, roots, exponentiations, sines, cosines, and tangents. You will also find tutorials on Neural Networks fuzzy logic and sets, and a fuzzy lab. TUTORIALS Fuzzy Logic Neural Networks LABORATORY Fuzzy Logic Lab Choose your challenge: Addition Subtraction Multiplication Division ... Fuzzy Lets see how brainy you are...(select a level)... Tutorials Fuzzy logic and sets Neural Networks Laboratory Fuzzy logic Lab Try to do it in your head...write your answer by clicking the pad... We'll tell how you did and see how fast you did it !!! Select an item bellow Addition Subtraction Multiplication Division ... Help

15. Discovering Trigonometry Frequently Asked Questions About trigonometry Q What is trigonometry? A trigonometry is the study of how the sides and angles of a triangle are related to each other. A Yes, that's all. http://www.catcode.com/trig

Frequently Asked Questions About Trigonometry Back to Dave's home page Q: What is trigonometry? A: Trigonometry is the study of how the sides and angles of a triangle are related to each other. Q: WHAT? That's all? A: Yes, that's all. It's all about triangles, and you can't get much simpler than that. Q: You mean trigonometry isn't some big, ugly monster that makes students turn green, scream, and die? A: No. It's just triangles. Q: Oh. But isn't that boring? A: We'll try to make it a little more fun by letting you play around with the triangles interactively. Let's start. Click on a topic to go to that page. If this is your first visit to these pages, we recommend that you start with the first item in the list. Stick and Shadows (part 1) Stick and Shadows (part 2) Shadows and Triangle Measuring the Sides ... A Few Final Words This material assumes that you know: How to measure angles That a right angle is is 90 degrees The sides of a triangle: the base , the height , and the hypotenuse If you aren't familiar with these concepts, you'll have to ask your math teacher to assist you with them. J. David Eisenberg

16. Discovering Trigonometry Frequently Asked Questions About trigonometry. Back to Dave's homepage Q What is trigonometry? A trigonometry is the study http://catcode.com/trig/

Frequently Asked Questions About Trigonometry Back to Dave's home page Q: What is trigonometry? A: Trigonometry is the study of how the sides and angles of a triangle are related to each other. Q: WHAT? That's all? A: Yes, that's all. It's all about triangles, and you can't get much simpler than that. Q: You mean trigonometry isn't some big, ugly monster that makes students turn green, scream, and die? A: No. It's just triangles. Q: Oh. But isn't that boring? A: We'll try to make it a little more fun by letting you play around with the triangles interactively. Let's start. Click on a topic to go to that page. If this is your first visit to these pages, we recommend that you start with the first item in the list. Stick and Shadows (part 1) Stick and Shadows (part 2) Shadows and Triangle Measuring the Sides ... A Few Final Words This material assumes that you know: How to measure angles That a right angle is is 90 degrees The sides of a triangle: the base , the height , and the hypotenuse If you aren't familiar with these concepts, you'll have to ask your math teacher to assist you with them. J. David Eisenberg

17. History Of Mathematics - Facets Of India : Ancient And Modern Includes history of algebra trigonometry, numerical mathematics, and geometry in this region. http://www.geocities.com/dipalsarvesh/mathematics.html

Dear guest, your feedback is very important to us and is more than welcome. Please email or click here to give your feedback. If you are not viewing this page from its parent site, please click here to visit the parent site titled "Facets of India : Ancient and Modern". Obligatory Note: This matter is created/compiled by Sarvesh Srivastava from various authentic resources for the site titled "Facets of India : Ancient and Modern" . Please feel free to link the page as it is, including this note, but strictly refrain from copying it as it may result in appropriate legal action. History of Ganit (Mathematics) Introduction Ganit (Mathematics) has been considered a very important subject since ancient times. We find very elaborate proof of this in Vedah (which were compiled around 6000 BC). The concept of division, addition et-cetera was used even that time. Concepts of zero and infinite were there. We also find roots of algebra in Vedah. When Indian Beez Ganit reached Arab, they called it Algebra. Algebra was name of the Arabic book that described Indian concepts. This knowledge reached to Europe from there. And thus ancient Indian Beez Ganit is currently referred to as Algebra. The book Vedang jyotish (written 1000 BC) has mentioned the importance of Ganit as follows- Meaning: Just as branches of a peacock and jewel-stone of a snake are placed at the highest place of body (forehead), similarly position of Ganit is highest in all the branches of

18. Steel Fabrication Software Supplies software for the steel fabricator including trigonometry and development of patterns or templates required in pipe fabrication. http://www.sfs.net.au/

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19. ThinkQuest Library Of Entries ratios Pythagorean and quotient identities Algebraic manipulation Quizon trigonometry. The trig. Back to top. Take the Quiz on trigonometry. http://library.thinkquest.org/20991/alg2/trig.html

Welcome to the ThinkQuest Internet Challenge of Entries The web site you have requested, Math for Morons like Us , is one of over 4000 student created entries in our Library. Before using our Library, please be sure that you have read and agreed to our To learn more about ThinkQuest. You can browse other ThinkQuest Library Entries To proceed to Math for Morons like Us click here Back to the Previous Page The Site you have Requested ... Math for Morons like Us click here to view this site A ThinkQuest Internet Challenge 1998 Entry Click image for the Site Languages : Site Desciption Have you ever been stuck on math? If it was a question on algebra, geometry, or calculus, you might want to check out this site. It's all here from pre-algebra to calculus. You'll find tutorials, sample problems, and quizzes. There's even a question submittal section, if you're still stuck. A formula database gives quick access and explanations to all those tricky formulas. Languages: English. Students J. Robert Davis High School Library UT, United States

20. Mozdev.org - Mozcalc: Index mozCalc is a localized (currently English and German) desktop calculator application allowing for both input in standard and reverse polish notation. For now it is a simple one, doing arithmetic operations and common math (eg. trigonometry). Yet it tries to use the power of XUL to implement an enhanced UI (eg. a sidebar showing the contents of the memory and skinning). http://mozcalc.mozdev.org

Do you want fries with that project? Saturday April 12th 2003 Donate Projects Active Projects Inactive Projects Project Categories Top 50 ... Start new project... Resources Documentation Mailing Lists Bug Tracking Source Hosting ... All Resources... Community About Chat FAQ Links ... Status Reports MozCalc NS 6.x version Home Mailing List Installation ... Feedback mozCalc is a localized (NEW: Spanish - thanx to Luis Fernandez!) desktop calculator application allowing for both input in "standard" and reverse polish notation. For now it is a simple one, doing arithmetic operations and common math (eg. trigonometry). Yet it tries to use the power of XUL and RDF to implement an enhanced UI (eg. a sidebar showing the contents of the memory and skinning). CALCULATOR FEATURES integration in Mozilla (via Tasks/Tools-menu) localized (English, German, French, Italian and Spanish) reverse polish notation mode common arithmetic operations (incl. reciprocal and percentage) common functions (square root, trigonometry and logarithms) copy and paste to and from the system clipboard memory management (10 slots) result history Spanish translation (0.4.5 for NS 6.x).

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