File:Inversion illustration1.png
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Inversion_illustration1.png (513 × 503 pixels, file size: 15 KB, MIME type: image/png)
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Summary
[edit]Transferred from en.wikipedia to Commons by Maksim.
The original description page was here. All following user names refer to en.wikipedia.
File:Inversion illustration1.svg is a vector version of this file. It should be used in place of this PNG file when not inferior.
File:Inversion illustration1.png → File:Inversion illustration1.svg
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Licensing
[edit]Public domainPublic domainfalsefalse |
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
function main() line_thickness=2.5; font_size=25; ball_rad=0.035; N=100; Theta=0:1/N:2*pi; X=cos(Theta); Y=sin(Theta); red=[1, 0, 0]; black=[0, 0, 0]; green=[0, 1, 0]; blue=[0, 0, 1]; white=0.99*[1, 1, 1]; clf; hold on; axis equal; axis off r=1; z=0.0; p=0.2*i+0.3; pp=r/conj(p); plot(X, Y, 'color', red, 'linewidth', line_thickness); plot([real(z), real(pp)], [imag(z), imag(pp)], 'color', blue, 'linewidth', line_thickness) color_ball(real(z), imag(z), ball_rad, blue); place_text_smartly (z, font_size, 3, 'O'); color_ball(real(p), imag(p), ball_rad, blue); place_text_smartly (p, font_size, 2, 'P'); color_ball(real(pp), imag(pp), ball_rad, blue); place_text_smartly (pp, font_size, 2, 'P\prime'); V=2.5; plot(V, V, '.', 'color', white) V=1.3; plot(-V, -V, '.', 'color', white) saveas(gcf, 'inversion_illustration1.eps', 'psc2'); function place_text_smartly (z, font_size, pos, tx) N=8; d=0.013; shiftx=0.002; shifty=0.006; p=cos(2*pi/N)+sqrt(-1)*sin(2*pi/N); z = z + p^pos * d * font_size; x = real (z); y=imag(z); H=text(x+shiftx*font_size, y+shifty*font_size, tx); set(H, 'fontsize', font_size, 'HorizontalAlignment', 'c', 'VerticalAlignment', 'c') function color_ball(x, y, r, color) Theta=0:0.1:2*pi; X=r*cos(Theta)+x; Y=r*sin(Theta)+y; H=fill(X, Y, color); set(H, 'EdgeColor', 'none');
date/time | username | edit summary |
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02:25, 19 November 2005 | en:User:Oleg Alexandrov | (+source code) |
02:02, 19 November 2005 | en:User:Oleg Alexandrov |
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- (del) (cur) 02:51, 19 November 2005 . . en:User:Oleg_Alexandrov Oleg Alexandrov ( en:User_talk:Oleg_Alexandrov Talk) . . 513x503 (15561 bytes)
- (del) (rev) 02:23, 19 November 2005 . . en:User:Oleg_Alexandrov Oleg Alexandrov ( en:User_talk:Oleg_Alexandrov Talk) . . 513x503 (15567 bytes)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:53, 19 March 2006 | 513 × 503 (15 KB) | Maksim (talk | contribs) | La bildo estas kopiita de wikipedia:en. La originala priskribo estas: == Licensing == {{PD-self}} ==Source code (MATLAB)== <pre> <nowiki> function main() line_thickness=2.5; font_size=25; ball_rad=0.035; N=100; Theta=0:1/N:2*pi; X=cos(Theta) |
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