File:TrigSumFormula.svg
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Size of this PNG preview of this SVG file: 392 × 392 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,024 × 1,024 pixels | 2,048 × 2,048 pixels.
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DescriptionTrigSumFormula.svg | Diagram for proof of trigonometric sum formula. |
Date | |
Source | Own work based on: TrigSumFormula.png by Liftarn |
Author |
Vector: |
SVG development InfoField |
Source
[edit]TrigSumFormula.euk (Eukleides source)
[edit]box(-0.15, -0.15, 1.1, 1.1, 4.5); O = point(0, 0); x_axis = line(O, 0<); l_alpha = line(O, 24:); l_beta = line(O, 60:); P = point(l_beta, 1); PQ = perpendicular(l_alpha, P); Q = intersection(l_alpha, PQ); QA = perpendicular(x_axis, Q); A = intersection(x_axis, QA); PB = perpendicular(x_axis, P); B = intersection(x_axis, PB); QR = parallel(x_axis, Q); R = intersection(PB, QR); mark(R,P,Q, simple, 0.3); % alpha mark(B,O,Q, simple, 0.3); % alpha mark(Q,O,P, simple, 0.25); % beta mark(point(l_alpha, 2),Q,P, dotted, 0.2); draw("$O$", O, .03, 220:); draw("$P$", P, .03, 124:); draw("$Q$", Q, .03, -34:); draw("$R$", R, .03, 180:); draw("$A$", A, .03, -90:); draw("$B$", B, .03, -90:); draw("$\alpha$", P, .18, -78:); draw("$\alpha$", O, .17, 12:); draw("$\beta$", O, .15, 42:); draw(segment(P,Q)); draw(segment(Q,R)); draw(segment(P,B)); draw(segment(Q,A)); draw(segment(O, point(x_axis, 1.0))); draw(segment(O, point(l_alpha, 1.1))); draw(segment(O, point(l_beta, 1.2)));
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:15, 7 September 2008 | 392 × 392 (15 KB) | Edudobay (talk | contribs) | Remade version with Eukleides | |
12:00, 31 March 2007 | 424 × 349 (6 KB) | Stannered (talk | contribs) | {{Information |Description=Diagram for proof of trigonometric sum formula. |Source=Image:TrigSumFormula.png |Date=2007-03-31 |Author=Traced by User:Stannered |Permission=GFDL original |other_versions=Image:TrigSumFormula.png }} [[Category:C |
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