Fail orginal (archivi in formad SVG, grandezza nominal 283 × 210 picsel, grandezza de l'archivi: 6 KByte)
Quell fail chì el ven de Wikimedia Commons e 'l po vesser doprad de alter proget.
La descrizzion sora la soa pagina de descrizzion del fail l'è mostrada chì de sota.
' Positions of 1st 10 zeros in bj1(x)data3.83170597data7.01558668data10.17346814data13.32369194data16.47063005data19.61585851data22.76008438data25.90367209data29.04682854data32.18967991'dimzero(5)forj=1to5readzero(j)nextj'open"radial_grad.txt"foroutputas#1max_x=zero(5)np=10forj=0to4forp=0tonp-1x=zero(j)*(1-p/np)+zero(j+1)*p/npif(x=0)thenairy=1:elseairy=(2*bj1(x)/x)^2airy=airy^0.4:' Gamma function (increases brightness of low values)x0=x/max_x?#1,"<stop offset=";chr$(34);str$(x0);chr$(34);?#1," style=";chr$(34);"stop-color:#";h$=hex$(floor(255*abs(airy)+0.5),2)?#1,h$;h$;h$;chr$(34);"/>"nextpnextj?#1,"<stop offset=";chr$(34);"1";chr$(34);" style=";?#1,chr$(34);"stop-color:#000000";chr$(34);"/>"close#1end'' BesselJ1 function based on Javascript source code at' http://www.mhtl.uwaterloo.ca/old/courses/me3532/js/bessel.htmlsubbj1(x)ax=abs(x)if(ax<8.0)theny=x*xtmp=(-2972611.439+y*(15704.48260+y*(-30.16036606)))ans1=x*(72362614232.0+y*(-7895059235.0+y*(242396853.1+y*tmp)))ans2=144725228442.0+y*(2300535178.0+y*(18583304.74+y*(99447.43394+y*(376.9991397+y*1.0))))ans=ans1/ans2elsez=8.0/axy=z*zxx=ax-2.356194491ans1=1.0+y*(0.183105e-2+y*(-0.3516396496e-4+y*(0.2457520174e-5+y*(-0.240337019e-6))))ans2=0.04687499995+y*(-0.2002690873e-3+y*(0.8449199096e-5+y*(-0.88228987e-6+y*0.105787412e-6)))ans=sqrt(0.636619772/ax)*(cos(xx)*ans1-z*sin(xx)*ans2)if(x<0.0)thenans=-ansendifbj1=ansendsub
Linear gradient stops were generated with this program
open"linear_grad.txt"foroutputas#1forx=0to20xx=((20-x)/20)^2:' Create more stop colors in low intensity regiony=(xx)^0.4:' Gamma functionc$=hex$(floor(255*y+0.5),2)c$=c$+c$+c$print#1,"<stop offset=";chr$(34);str$(1-xx);chr$(34);print#1," style=";chr$(34);" stop-color:#";c$;chr$(34);"/>"nextxclose#1end
Licenza
Public domainPublic domainfalsefalse
Quest'opera chì l'è stada missa in del domini publich del so autor, Sakurambo di Wikipedia in ingles. Questa norma chì la var in tut el mond. In d'un quai paes chesschì el podarìss vesser minga permetud de la lensg. In del cas: El/la Sakurambo el/la la sicura a chissessia el dirit de drovà quell lavorà chì per qualsessia fin, sota nissuna condizzion, condamench ch'a ghe sìen di condizzion imposte de la lensg.Public domainPublic domainfalsefalse
Register original del caregament
The original description page was here. All following user names refer to en.wikipedia.
2008-07-09 14:17 Sakurambo 283×210× (5677 bytes) xml errors fixed
2008-07-09 14:15 Sakurambo 283×210× (5698 bytes) better version (gradients calculated in software)
2008-07-08 10:42 Sakurambo 283×210× (3756 bytes) {{Information |Description=vectorized version of [[:Image:Airy-pattern.png]] |Source=I created this work entirely by myself. |Date=2007-07-08 |Author=~~~ |other_versions=[[Image:Airy-pattern.png|100px]] }}
Insegna
Sgionta una spiegazzion curta de cosa l'è che quell fail chì el rapresenta.
{{Information |Description={{en|vectorized version of en::Image:Airy-pattern.png}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]<br/> (Original text : ''Created in en:Adobe Illustrator and then edited to incorporate gradie...
Ligámm
Quell fail chì l'è doprad de la pagina chichinscì: