41. Trigonometry - Maths Online Gallery Multimedia learning units on trigonometry maths online Gallery. http://www.univie.ac.at/future.media/moe/galerie/trig/trig.html

Trigonometry The applets are started by clicking the red buttons. The applet Triangle and Law of Sines emphasizes that the mathematical symbols denoting lengths, angles and trigonometric functions in a triangle stand for concrete numbers. Furthermore, it illustrates (two versions of) the Law of Sines. Note that the applet does not provide a proof of the latter. For a multimedia proof see The Law of Sines by Math Education and Technology. The applet is started from the red button in its own window. Also see the learning units under Trigonometric functions Definition of the trig functions (applet) and under Functions 2 The graphs of sin, cos and tan (applet) Graphs of elementary trigonometric functions (graphics) Recognize functions 3 (puzzle, sine and cosine functions) Recognize graphs 3 (puzzle, sine and cosine functions) Gallery - Table of contents Maths links online tools topics ... Welcome Page

42. Regents Math A: Right Triangle Trigonometry L, trigonometry Solving for an Angle, Donna Roberts P, Calculator Practice with Trigonometric Functions, Michael Caldwell http://regentsprep.org/regents/Math/math-topic.cfm?TopicCode=rtritrig

43. Trig Help - Trigonometry Online Video Lessons Help with trigonometry, trig functions, right triangles, radians, identities, formulas, and graphing. http://www.mathtv.com/Trig/pages/toc.htm

MathTV.com - Algebra and trigonometry video tutorials designed to help high school and college math students improve their math skills. Visit MathTV.com for more videos and learning resources. Select a chapter to begin viewing trig video tutorials. Requires RealPlayer 8 or higher Purchase this trigonometry course on CD-ROM and get higher quality video and no banner ads.

44. Trigonometry Calculators online trigonometry calculators. Trig Calculus trigonometry and calculus calculators. Triangle Calculator Solve for sides and angles of a http://www.ifigure.com/math/trig/trig.htm

your source for online planning, calculating and decision-making Home Plan Calculate Convert ... Decide Mathematics Basic Math Algebra Geometry Trigonometry ... Tutorials Trigonometry Trigonometry and calculus calculators. Triangle Calculator Solve for sides and angles of a triangle, using degrees or radians. Ultimate Triangle Calculator Solve for angles and sides of a triangle given three pieces of information (e.g., 3 sides, side-angle-side, etc.) Send email to: webmaster@ifigure.com Find Math Books ... Algebra Basic Math Calculus Geometry ... Trigonometry

45. Trigonometry And Astronomy The astronomers use trigonometry for calculating distances to stars. They know the diameter of the Earth’s Orbit which is 2 A.U.(Astronomical Unit). http://www.geocities.com/Hollywood/Academy/8245/

46. Trigonometry trigonometry is nothing more than how to deal with angles versus straight lines. The tricky part comes because the numbers instantly get very messy and hard http://www.hyper-ad.com/tutoring/trig.htm

Basics Identities Examples Formulae · Exercizes · Advanced Keywords Navigation Recommended Books Site Index ... Gift Shop Trigonometry: The very fast review I. Basics Example The 45° triangle Figure 1- The 45° triangle According to Pythagorus, . Using the definitions of the trig functions gives us back to top Example 2. The 30°/60° triangle Figure 2 - The 30°/60° triangle According to Pythagorus, . Using the definitions of the trig functions gives back to top Example 3. The 15°/75° triangle Figure 3 - The 15°/75° triangle Now we make use of the formulas Addition , Subtraction There are other triangles, but I am lazy. Let's see how far you can get with just those I've done so far and a few simple laws (so you can add and subtract and multiply and divide angles). Please note that getting 1/3 of an angle is equivalent to trisecting it, a classic impossible problem! ( Advanced - because the answer depends on solving a cubic. The answer is rather dirty-looking, anyway). back to top And there are as many more as you care to memorize (always a mistake!). The hard part will be in coming up with smaller divisions (such as 5 degrees) without the arithmetic getting infinitely hairy. The author tried for hours and gave up! back to top II. Trig

47. Trigonometry Calculator trigonometry calculator solves for all 6 trigonometric functions and for all 6 trigonometric arcfunctions, the double line display works with degrees and http://www.1728.com/trigcalc.htm

var sigfig=5; var num1=0; var num2=0; var num3=0; var num4=0; var sigfig=5; var ang1=" Angle (Degrees) "; var ang$=" Degrees "; var angch=0; var choyce=0; var rad=57.2957795130823; var chc=0; var angname=new Array("ZERO", " Degrees "," Radians ", " ", " ", " Degrees "," Radians "); var func=new Array(" ZERO ", " Sine ", " Cosine ", " Tangent ", " Cotangent ", " Secant ", " Cosecant ", " ArcSine ", " ArcCosine ", " ArcTangent ", " ArcCotangent ", " ArcSecant ", " ArcCosecant ") var angconv=new Array(0.0174532925199433, 0.000290888208665722, 0.00000484813681109536, 57.2957795130823, 3437.74677078494, 206264.806247096) var cnv=3; Trigonometry Calculator For a short trigonometry tutorial, click here Input > > > < Input This trigonometry calculator is incredibly easy to use. Just type a number in the input box and then click any of the 12 buttons and you will have your answer. Please, give it a try. Significant Figures >>> Answers are displayed in scientific notation with the number of significant figures you specify in the box above. For easier readibility, numbers between .001 and 1,000 will

48. Marlene's Trigonometry Calculator - Home Page Learn the basics, the solutions, and how to convert from degrees to radians. http://www.marlenesite.com/math/trigonometry/

Note: Your browser has JavaScript turned off. You must have JavaScript Enabled to view this Site. Home Page Home Page Basics: Basics: (click to close) Trigonometric Functions Formulas and Identities ... Radians to Degrees This web site will show how to do various operations in Trigonometry. This is an interactive site that will: Compute the solutions of a Right Triangle (along with the trigonometric functions for both acute angles) and show the steps how the calculations were made: Given two sides Given one side and the hypotenuse Given one side and one of the acute angles Convert Degree to Radians and Radians to Degrees (along with the trigonometric functions for the degree or radian) and show the steps how the calulations were made. Display a Degree -Radian Table given a starting Degree and a Hour, Minute, or Second increment between consecutive values. Page Description Menu Basics: Trigonometric Functions This page will define and explain the trigonometric functions. Formulas and Identities This page will cover the trigonometric formulas and identities used in this site.

49. Trigonometry Or Trig: Math An explanation YOU can understand of trigonometry, and what all these triangle and circles and waves mean. http://www4.ncsu.edu/unity/lockers/users/f/felder/public/kenny/papers/trig.html

Quote of the Week (not math-related) Triangles, Circles, and Waves (oh my!) An Overview of Trigonometry by Kenny Felder Requires Fonts This sheet is meant as a guide to help you review trigonometry. I assume you're already familiar with the basic concepts, and just need to have things cleared up or refreshed; if you've never seen trig before, this sheet will probably only be helpful in conjunction with a class. The Basic Idea Start out by considering a right triangle: that is, a triangle with one 90 o angle. The angle that we care about is one of the other ones, which we'll label with the Greek letter q . (Everyone always labels angles with Greek letters. Why? One loyal reader tells me this is done in honor of Pythagoras.) We're going to look at the sides: the big one, opposite the right angle, we call the hypotenuse . The other two don't have special names, but one is adjacent to q and one is opposite q , so those will do. In the triangle below, for instance, the side opposite q has length 2 (inches, or meters, or whatever). The side adjacent to q has length . The hypotenuse, therefore, must have length 4 by the Pythagorean theorem.

50. Trigonometry Learning Units The trigonometry Learning Units listed below are available for viewing and downloading. Please note that more titles will be added to this list periodically http://www.nsa.gov/teachers/teach00023.cfm

@import url(/styles/advanced.css); @import url(/about/styles/aboutnsa_advanced.css); @import url(/about/styles/aboutnsa_site_menu.css); @import url(/about/styles/aboutnsa_section_menu.css); @import url(/styles/content.css); Skip top menus Home About NSA Research ... Frequently Asked Questions Trigonometry Learning Units Search What's new? The Trigonometry Learning Units listed below are available for viewing and downloading. Please note that more titles will be added to this list periodically. 2003 High School Learning Units Peak Performance 2001 High School Learning Units Gravel Roads and Sinusoidal Patterns 2000 High School Learning Units Making Waves 1997 High School Learning Units Hold That Note Forecast Trig Waves 1996 High School Learning Units Just a Matter of Time Milling Mathematics Metal Running Around in Circles... Stringing Along with Radians 1995 High School Learning Units Analysis of the Tidal Wave Applying Vectors Solutions to Navigation Bungee Barbie Forces on an Inclined Plane ... Accessibility

51. 4 Trigonometry Review www.npac.syr.edu/REU/reu94/williams/ch1/section3_4.html Similar pages New trigonometry is a sign of the timesSep 16, 2005 PhysOrg news New trigonometry is a sign of the times. http://www.npac.syr.edu/REU/reu94/williams/ch1/section3_4.html

Next: 4.1 Radians Up: Ch.1 Review of Needed Previous: 3.8 Composition of Functions 4 Trigonometry Review 4.1 Radians 4.2 Conversion 4.3 Trigonometric Functions 4.4 Sign (+ or -) of the Trig Functions ... 4.9.5 Half Angle mx_williams@smcvax.smcvt.edu

52. TRIGONOMETRY PURPOSE This is a look at trigonometry for practical use in flash actionscript. I am one of those people who could have cared less about trigonometry when http://codylindley.com/Tutorials/trigonometry/

People have ask so here it is: download it! (this file includes fla's and all, just drop index.htm in a browser) PURPOSE: This is a look at trigonometry for practical use in flash actionscript. I am one of those people who could have cared less about trigonometry when it was taught to me in high school. Today I am kicking myself for not paying more attention in math class. WHY: The reason for this refresher is for the purpose of writing/programming actionscript in flash that will fake 3D in a 2D space. This was written for my own notes, but I decided someone else out there might get some use out of it. WARNING: The trigonometry is a review for any one with some common sense and the desire to learn. I do however expect the readers of this material to be knowledgeable about actionscript programming techniques when it comes to writing code for flash. With that said. Expect very little explanation about flash and the code itself. However anyone who considers themselves a flash actionscript guru should be fine. Time for a reality check yet? (You need math to understand trigonometry! You need Colin Moock's book on actionscript to understand scripting techniques in flash.) Last word, reader be ware I am not a writer and this was not written for the the purpose of regenerating these ideas in flash. Think of this material as just a tutorial on the concept of trigonometry and flash, an overview really. Ya, I know. This stuff is not new and for the most part I am just rehashing what I've read in books, examples and all. So don't go thinking I am some super smart guy. The reality is I just read a lot of books. And the people who wrote those books are just people who read a lot of books. And the people who wrote those books are, well, you get the idea. Credit will be giveing to those books at the bottom of this page.

53. Spherical Trigonometry One of the primary concerns in astronomy throughout history was the positioning of the heavenly bodies, for which spherical trigonometry was required. http://www.hps.cam.ac.uk/starry/sphertrig.html

Links Mathematical Techniques Home Index Spherical Trigonometry One of the primary concerns in astronomy throughout history was the positioning of the heavenly bodies, for which spherical trigonometry was required. The diagrams below show trihedrals, polyhedra with triangular sides. For astronomy, V is the position of the observer, and PQR are points on a sphere centred at V, the celestial sphere. From 2 dimensional trigonometric relations the upper diagram gives: From the right hand diagram, and the fact that PQR is perpendicular to VP, we can get: QR = PQ + PR - 2PQ PR cos A = VQ + VR - 2 VQ VR cos a Simplifying and applying Pythagoras' Theorem gives: + 2 PQ PR cos A Which can be simplified further, dividing by (VQ)(VR) using 2 dimensional trigonometrical relations to give the first law of cosines for trihedrals: Construction of a second trihedral called the polar trihedral from the first gives a different set of relationships between the quantities of the first law, the second law of cosines: These equations can be used to calculate positions on the celestial sphere, however, the laws can be simplified by consideration of the spherical triangle (see diagram below).

54. Industrial Press Online trigonometry table to determine the sine, cosine, tangent, secant, cosecant and cotangent for angles 0 to 90 degrees. http://www.industrialpress.com/Trig.htm

55. Reflektions Miniml > Kinematic Through Trigonometry V2 And for a quick refresher in trigonometry, i suggest you take a look at this list of trigonometric facts. // Calculates and returns the angle (in radians) http://www.reflektions.com/miniml/template_permalink.asp?id=460

56. Trigonometry - Untitled Octave provides the following trigonometric functions. Angles are specified in radians. To convert from degrees to radians multipy by pi/180 (e.g. sin (30 http://www.gnu.org/software/octave/doc/interpreter/Trigonometry.html

: Sums and Products , Previous: Complex Arithmetic , Up: Arithmetic 18.3 Trigonometry Octave provides the following trigonometric functions. Angles are specified in radians. To convert from degrees to radians multipy by pi/180 (e.g. sin (30 * pi/180) returns the sine of 30 degrees). sin x Compute the sine of each element of x cos x Compute the cosine of each element of x tan z Compute tangent of each element of x sec x Compute the secant of each element of x csc x Compute the cosecant of each element of x cot x Compute the cotangent of each element of x asin x Compute the inverse sine of each element of x acos x Compute the inverse cosine of each element of x atan x Compute the inverse tangent of each element of x asec x Compute the inverse secant of each element of x acsc x Compute the inverse cosecant of each element of x acot x Compute the inverse cotangent of each element of x sinh x Compute the hyperbolic sine of each element of x cosh x Compute the hyperbolic cosine of each element of x tanh x Compute hyperbolic tangent of each element of x sech x Compute the hyperbolic secant of each element of x csch x Compute the hyperbolic cosecant of each element of x coth x Compute the hyperbolic cotangent of each element of x asinh x Compute the inverse hyperbolic sine of each element of x acosh x Compute the inverse hyperbolic cosine of each element of x atanh x Compute the inverse hyperbolic tangent of each element of x asech x Compute the inverse hyperbolic secant of each element of x acsch x Compute the inverse hyperbolic cosecant of each element of x acoth x Compute the inverse hyperbolic cotangent of each element of

57. MathHelp Notebook On Trig Functions If you feel confident with trigonometry already, then feel free to skip to This notebook is about another set of functions, the trigonometric functions. http://www.ucl.ac.uk/Mathematics/geomath/trignb/trigmod.html

58. Tutor.com - Live Online Trigonometry Tutoring And Trigonometry Homework Help Our professional trigonometry tutors are available everyday and provide oneto-one help—no appointments needed! Whether it s a homework help, studying for http://www.tutor.com/subjects/trigonometry.aspx

Questions? Connect to a Tutor Now Press Our Company Contact Us ... Awards and Recognition Pick a subject below: Math Algebra Calculus Geometry Trigonometry Science Chemistry Biology Physics Earth Science English Essay Writing Proofreading Literature History Research US History World History var lpPosY = 100; FAST FACTS Trigonometry is critical if you plan to major in math, science or engineering in college. Many bridges and other architectural structures are made from triangles, because they can carry extremely large loads. He helped me in a step-by-step process that allowed me to understand what I needed to do to complete my problems. Trigonometry is hard enough and he made it much easier to understand. Gloria, 12th grade Math - Trigonometry Read what other trigonometry students are saying about Tutor.com Live Online Trigonometry Tutoring and Homework Help Trigonometry is more than just finding the sine, cosine and tangent or measuring angles. It's an important part of any advanced math or engineering curriculum. Tutor.com has thousands of expert math tutors online, and helps students just like you solve thousands of trigonometry problems every day. Our tutors don't give answers. Instead, they are experts at leading students to the correct answer and showing them how to arrive at solutions. Students end the tutoring session feeling confident that they understand the material and can solve similar trigonometry problems on their own.

59. PBS - Islam: Empire Of Faith - Innovative - Algebra & Trigonometry Algebra. Medieval Muslims made invaluable contributions to the study of mathematics, and their key role is clear from the many terms derived from Arabic. http://www.pbs.org/empires/islam/innoalgebra.html

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); Medieval Muslims made invaluable contributions to the study of mathematics, and their key role is clear from the many terms derived from Arabic. Perhaps the most famous mathematician was Muhammad ibn Musa al-Khwarizmi (ca. 800-ca. 847), author of several treatises of earth-shattering importance. His book On the Calculation with Hindu Numerals , written about 825, was principally responsible for the diffusion of the Indian system of numeration (Arabic numerals) in the Islamic lands and the West. Traditional systems had used different letters of the alphabet to represent numbers or cumbersome Roman numerals, and the new system was far superior, for it allowed people to multiply and divide easily and check their work. The merchant Leonardo Fibonacci of Pisa, who had learned about Arabic numerals in Tunis, wrote a treatise rejecting the abacus in favor of the Arab method of reckoning, and as a result, the system of Hindu-Arabic numeration caught on quickly in Central Italy. By the fourteenth century, Italian merchants and bankers had abandoned the abacus and were doing their calculations using pen and paper, in much the same way we do today.

60. Trigonometry - MSN Encarta trigonometry, branch of mathematics that deals with the relationships between the sides and angles of triangles and with the properties and http://encarta.msn.com/encyclopedia_761572350/trigonometry.html

var s_account="msnportalencarta"; MSN home Mail My MSN Sign in ... more Hotmail Messenger My MSN MSN Directory Air Tickets/Travel Autos City Guides Election 2008 ... More Additional Reference Materials Thesaurus Translations Multimedia Other Resources Education Resources Math Help Foreign Language Help Project Planner ... Help Editors' Picks Great books about your topic, Trigonometry , selected by Encarta editors Related Items field of mathematics Hipparchus, Greek mathematician who developed table for triangles more... Encarta Search Search Encarta about Trigonometry Advertisement Windows Live® Search Results Trigonometry - Wikipedia, the free encyclopedia Trigonometry (from Greek trigōnon "triangle" + metron "measure") is a branch of mathematics that deals with triangles , particularly those plane triangles in which one angle has ... Trigonometry from Wolfram MathWorld The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the circular ... S.O.S. Math - Trigonometry

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