File:ExampleEquationLog01.png: Difference between revisions
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imported>Dmitrii Kouznetsov (Category:Code) |
imported>Caesar Schinas m (Bot: Replace Template:Image_notes_* with Template:Image_Details) |
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| Line 1: | Line 1: | ||
== Summary == | == Summary == | ||
{{ | {{Image_Details|permission | ||
| | |description = Graphic of functions | ||
<math>y=x</math> (black) and | <math>y=x</math> (black) and | ||
<math>y=\log_b(x)</math> for | <math>y=\log_b(x)</math> for | ||
| Line 7: | Line 7: | ||
<math>b=\rm e^{1/\rm e}</math> (green) | <math>b=\rm e^{1/\rm e}</math> (green) | ||
<math>b=2</math> (blue) | <math>b=2</math> (blue) | ||
|author = Dmitrii Kouznetsov | |||
| | |copyright = Dmitrii Kouznetsov | ||
| | |source = //Example of graphic soluiton of equation | ||
| | |||
//Example of graphic soluiton of equation | |||
#include <math.h> | #include <math.h> | ||
#include <stdio.h> | #include <stdio.h> | ||
| Line 60: | Line 58: | ||
fclose(o); | fclose(o); | ||
} | } | ||
| | |date-created = 2008 | ||
| | |pub-country = Japan | ||
| | |notes = Use it for free: copy, distribute, modify as you like. Indicate the source and mention that you have modified it if you did. | ||
| | |versions = | ||
}} | }} | ||
Revision as of 03:43, 22 June 2009
Summary
| Title / Description
|
Graphic of functions
(black) and for (red) (green) (blue) |
|---|---|
| Author(s)
|
Dmitrii Kouznetsov |
| Copyright holder
|
Dmitrii Kouznetsov See below for license/re-use information. |
| Source
|
//Example of graphic soluiton of equation
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#define DB double
void ado(FILE *O, int X, int Y)
{ fprintf(O,"%c!PS-Adobe-2.0 EPSF-2.0\n",'%');
fprintf(O,"%c%cBoundingBox: 0 0 %d %d\n",'%','%',X,Y);
fprintf(O,"/M {moveto} bind def\n");
fprintf(O,"/L {lineto} bind def\n");
fprintf(O,"/S {stroke} bind def\n");
fprintf(O,"/s {show newpath} bind def\n");
fprintf(O,"/times-Roman findfont 6 scalefont setfont\n");
fprintf(O,"/W {setlinewidth} bind def\n");
fprintf(O,"/RGB {setrgbcolor} bind def\n");}
#define DO(x,y) for(x=0;x<y;x++)
main(){ FILE *o; o=fopen("log.eps","w"); ado(o,800,800);
fprintf(o,"10 10 scale\n");
fprintf(o,"10 10 translate\n");
#define M(x,y) fprintf(o,"%5.2f %5.2f M\n",10.*(x),10.*(y));
#define L(x,y) fprintf(o,"%5.2f %5.2f L\n",10.*(x),10.*(y));
M(0,6.3)L(0,0) L(6.3,0)
fprintf(o,".3 W S\n");
int n; DB x,y,t;
for(n=1;n<7;n++){M(0,n)L(6,n)} fprintf(o,".06 W S\n");
for(n=0;n<6;n++){M(-.4,n-.18) fprintf(o,"(%1d)s\n",n);}
for(n=1;n<7;n++){x=1*n;M(x,0)L(x,6)}
M(-.5,M_E)L(6,M_E)
M(M_E,-.5)L(M_E,6)
fprintf(o,".06 W S\n");
for(n=1;n<6;n+=1){x=1*n;M(x-.16,-.5) fprintf(o,"(%1.0f)s\n",x);}
M(0,0)L(7,7)
fprintf(o,".4 W S\n");
M(-.8,M_E-.16) fprintf(o,"(e)s\n");
M(M_E-.14,-.8) fprintf(o,"(e)s\n");
fprintf(o,"/Times-Italic findfont 6 scalefont setfont\n");
M(-0.5,6) fprintf(o,"(y)s\n");
M(6,-0.5) fprintf(o,"(x)s\n");
for(n=0;n<70;n+=2){x=.8+.02*n+.001*n*n;y=log(x)/log(sqrt(2.));
if(n==0)M(x,y)else L(x,y)}
fprintf(o,"1 0 0 RGB 0.3 W S\n");
for(n=0;n<70;n+=2){x=.7+.02*n+.001*n*n;y=log(x)/log(exp(1/M_E)); if(n==0)M(x,y)else L(x,y)}
fprintf(o,"0 .8 0 RGB 0.3 W S\n");
for(n=0;n<70;n+=2){x=.6+.02*n+.001*n*n;y=log(x)/log (2.); if(n==0)M(x,y)else L(x,y)}
fprintf(o,"0 0 1 RGB 0.3 W S\n");
fprintf(o,"showpage\n");
fprintf(o,"%cTrailer\n",'%');
fclose(o);
}
|
| Date created
|
2008 |
| Country of first publication
|
Japan |
| Notes
|
Use it for free: copy, distribute, modify as you like. Indicate the source and mention that you have modified it if you did. |
| Other versions
|
If there are other versions of this media on CZ, please list them here. |
| Using this image on CZ
|
Copy the code below to add this image to a Citizendium article, changing the size, alignment, and caption as necessary.
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Please send email to manager A T citizendium.org .
Licensing/Copyright status
This media, ExampleEquationLog01.png, is copyrighted but may be reused
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