„Forsíða“: Munur á milli breytinga

Úr Heimaslóð, Sögusetri Vestmannaeyja
Fara í flakk Fara í leit
Ekkert breytingarágrip
Ekkert breytingarágrip
Lína 32: Lína 32:
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<center>Við höfum í augnablikinu {{NUMBEROFARTICLES}} greinar.</center>
<center>Við höfum í augnablikinu {{NUMBEROFARTICLES}} greinar.</center>
<math>\frac{\sin\left(\sqrt{x^2+y^2}\right)}{\sqrt{x^2+y^2}}:</math>
<plot>set border 4095 lt -1 lw 1.000
set view 130, 10, 1, 1
set samples 50, 50
set isosamples 50, 50
unset surface
set pm3d at s
set pm3d scansbackward flush begin noftriangles nohidden3d implicit corners2color mean
splot sin(sqrt(x**2+y**2))/sqrt(x**2+y**2)</plot>
Julia set:
<plot>set pm3d at s solid
set palette rgb -6,-15,-7
unset colorbox
set ticslevel 0
unset ztics
unset surface
set samples 70
set isosamples 70,70
complex(x,y)=x*{1,0}+y*{0,1}
mandel(x,y,z,n) = (abs(z)>2.0 || n>=1000)? log(n): mandel(x,y,z*z+complex(x,y),n+1)
a=-0.38
b=-0.612
set multiplot
set origin 0,0
set size 0.55,0.77
splot [-0.5:0.5][-0.5:0.5] mandel(a,b,complex(x,y),0)   
set origin 0.35,-0.15
set size 0.7,0.96
set view 0,0,,,
splot [-0.5:0.5][-0.5:0.5] mandel(a,b,complex(x,y),0)</plot>
Figure-8 Klein bottle:
<plot>x(u,v)= cos(u)*(cos(u/2)*cos(v)+sin(u/2)*sin(2*v)+3.0)
y(u,v)= -sin(u)*(cos(u/2)*cos(v)+sin(u/2)*sin(2*v)+3.0)
z(u,v)= -sin(u/2)*cos(v)+cos(u/2)*sin(2*v) 
set pm3d explicit
set palette rgb 3,7,9
unset colorbox
set parametric
set hidden3d
set ticslevel 0
unset key
set isosamples 40,40
set view 65,70,1,1
set urange[-0.5*pi:1.5*pi]
set vrange[-pi:pi]
set zrange[-2:2]
set multiplot
splot x(u,v),y(u,v),z(u,v) w pm3d
splot x(u,v),y(u,v),z(u,v) lt 6</plot>

Útgáfa síðunnar 31. maí 2005 kl. 15:40

Velkomin á Blik, sögusetur Vestmannaeyja á netinu. Hér er um að ræða upplýsingaveitu um sögu, menningu og náttúru Vestmannaeyja.

Hér vantar almennilegan texta.

Við höfum í augnablikinu 17.622 greinar.


<math>\frac{\sin\left(\sqrt{x^2+y^2}\right)}{\sqrt{x^2+y^2}}:</math> <plot>set border 4095 lt -1 lw 1.000 set view 130, 10, 1, 1 set samples 50, 50 set isosamples 50, 50 unset surface set pm3d at s set pm3d scansbackward flush begin noftriangles nohidden3d implicit corners2color mean splot sin(sqrt(x**2+y**2))/sqrt(x**2+y**2)</plot>

Julia set:

<plot>set pm3d at s solid set palette rgb -6,-15,-7 unset colorbox set ticslevel 0 unset ztics unset surface set samples 70 set isosamples 70,70 complex(x,y)=x*{1,0}+y*{0,1} mandel(x,y,z,n) = (abs(z)>2.0 || n>=1000)? log(n): mandel(x,y,z*z+complex(x,y),n+1) a=-0.38 b=-0.612 set multiplot set origin 0,0 set size 0.55,0.77 splot [-0.5:0.5][-0.5:0.5] mandel(a,b,complex(x,y),0) set origin 0.35,-0.15 set size 0.7,0.96 set view 0,0,,, splot [-0.5:0.5][-0.5:0.5] mandel(a,b,complex(x,y),0)</plot>

Figure-8 Klein bottle:

<plot>x(u,v)= cos(u)*(cos(u/2)*cos(v)+sin(u/2)*sin(2*v)+3.0) y(u,v)= -sin(u)*(cos(u/2)*cos(v)+sin(u/2)*sin(2*v)+3.0) z(u,v)= -sin(u/2)*cos(v)+cos(u/2)*sin(2*v) set pm3d explicit set palette rgb 3,7,9 unset colorbox set parametric set hidden3d set ticslevel 0 unset key set isosamples 40,40 set view 65,70,1,1 set urange[-0.5*pi:1.5*pi] set vrange[-pi:pi] set zrange[-2:2] set multiplot splot x(u,v),y(u,v),z(u,v) w pm3d splot x(u,v),y(u,v),z(u,v) lt 6</plot>