File:Unit circle.svg

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Original file(SVG file, nominally 352 × 352 pixels, file size: 7 KB)

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Summary

Title / Description


A drawing of the unit circle which is central to trigonometry
Citizendium author
& Copyright holder


Copyright © Johan A. Förberg.
See below for licence/re-use information.
Date created


10 March 2010
Country of first publication


Sweden
Notes


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A F.R

Summary

Description
English: An illustration of the unit circle for the article Unit circle.
Date 18 February 2006 (upload date)
Source Own work
Author Gustavb
SVG development
InfoField
 
The SVG code is valid.
 
This mathematical image was created with an unknown SVG tool.
 
The file size of this SVG mathematical image may be irrationally large because its text has been converted to paths inhibiting translations.

Licensing

Public domain This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Heptagon
Heptagon

Source

Created by Gustavb using Eukleides.

Unit_circle.euk (Eukleides source)

box(-1.3, -1.3, 1.6, 1.6, 1.4)

% Axis
X1 = point(-1.7, 0); X2 = point(1.4, 0)
Y1 = point(0, -1.7); Y2 = point(0, 1.4)
thickness(1)
draw(segment(X1,X2), full, arrow); draw(segment(Y1,Y2), full, arrow)
thickness(1.6)

O = point(0,0);  % origo

% Unit circle
C = circle(O, 1)

% Angle
phi interactive(58, -3, 0, 360, "", right)
P = point(C, phi:) 

draw(C); draw(P); draw(O,P)

% Angle mark
tricks "psset{linewidth=.5pt,arrowsize=3pt}"
mark(X2,O,P,arrow,.5)

% Draw labels
draw("$t$",O,.35,.5*phi:)
draw("$y$",Y2,.15,-30:); draw("$x$",X2,.15,-130:)

PS-tricks source

\psset{linecolor=black, linewidth=.5pt, arrowsize=2pt 4}
\psset{unit=1.4000cm}
\pspicture*(-1.3000,-1.3000)(1.6000,1.6000)
\psset{linewidth=0.5000pt}
\psline{->}(-1.7000,0.0000)(1.4000,0.0000)
\psline{->}(0.0000,-1.7000)(0.0000,1.4000)
\psset{linewidth=0.8000pt}
\pscircle(0.0000,0.0000){1.0000}
\psdots[dotstyle=*, dotscale=1.0000](0.5299,0.8480)
\psline(0.0000,0.0000)(0.5299,0.8480)
\psset{linewidth=.5pt,arrowsize=3pt}
\psarc{->}(0.0000,0.0000){0.2500}{0.0000}{58.0000}
\uput{0.3500}[29.0000](0.0000,0.0000){$t$}
\uput{0.1000}[58.0000](0.5299,0.8480){$(\cos t,\sin t)$}
\uput{0.1500}[-30.0000](0.0000,1.4000){$y$}
\uput{0.1500}[-130.0000](1.4000,0.0000){$x$}
\endpspicture

Instructions

  1. Create EPS
    $ euk2eps Unit_circle.euk
  2. Outline fonts
    $ eps2eps -dNOCACHE Unit_circle.eps Unit_circle2.eps
  3. Fix bounding box
    $ ps2epsi Unit_circle2.eps Unit_circle.eps
  4. Convert to Sketch
    $ pstoedit -f sk Unit_circle.eps Unit_circle.sk
  5. Convert to SVG
    $ skconvert Unit_circle.sk Unit_circle.svg
  6. Fix Unit_circle.svg with Inkscape
  7. create EPS br pre $euk2EPS Unit_circle.euk pre
  8. outline fonts

Captions

Illustration of the unit circle.

Items portrayed in this file

depicts

18 February 2006

File history

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Date/TimeThumbnailDimensionsUserComment
current15:44, 10 June 2019Thumbnail for version as of 15:44, 10 June 2019352 × 352 (7 KB)imagescommonswiki>JarvisaMinified

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