Khan/khan-exercises — Issue #10465: Scaling vectors - Scaling vectors JS problem
Author: KhanBugz
Created: 2012-01-05 21:39:50+00:00
State: open
Labels: firefox, not-showing, xp

This is how i see content of task 'Scaling vectors'. Additionaly i got some JavaScript error (with no message)

What is SA \vec a?
graphInit({range:10,scale:20,tickStep:1,axisArrows:"<->"}),style({stroke:"#6495ed",color:"#6495ed"},function(){var a=1+.8/sqrt(AX*AX+AY*AY);do var b=randRange(-9,9),c=randRange(-9,9);while(0"}),label([a*AX,a*AY],"\\vec a")}),style({stroke:"#ff00af",color:"#ff00af"},function(){var a=1+.8/sqrt(BX*BX+BY*BY);line([BOX,BOY],[BOX+BX,BOY+BY],{arrows:"->"}),label([BOX+a*BX,BOY+a*BY],"\\vec b")}),style({stroke:"#28ae7b",color:"#28ae7b"},function(){var a=1+.8/sqrt(CX*CX+CY*CY);line([COX,COY],[COX+CX,COY+CY],{arrows:"->"}),label([COX+a*CX,COY+a*CY],"\\vec c")}),style({stroke:"#ffa500",color:"#ffa500"},function(){var a=1+.8/sqrt(DX*DX+DY*DY);line([DOX,DOY],[DOX+DX,DOY+DY],{arrows:"->"}),label([DOX+a*DX,DOY+a*DY],"\\vec d")}),style({stroke:"#fd0000",color:"#fd0000"},function(){var a=1+.8/sqrt(EX*EX+EY*EY);line([EOX,EOY],[EOX+EX,EOY+EY],{arrows:"->"}),label([EOX+a*EX,EOY+a*EY],"\\vec e")})

\vec ANSL

\vec b
\vec c
\vec d
\vec e

[scaling_vectors.html?seed=20&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/scaling_vectors.html?seed=20&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/scaling_vectors.html?seed=20&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%220%2C01327%25%5C%22%22%2C23%5D%2C%5B%22incorrect-activity%22%2C%22%5C%220.01327%25%5C%22%22%2C17%5D%2C%5B%22incorrect-activity%22%2C%22%5C%220.01%25%5C%22%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2213.27%25%5C%22%22%2C18%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C16%5D%2C%5B%22hint-activity%22%2C%220%22%2C20%5D%2C%5B%22correct-activity%22%2C%22%5C%22132.7%25%5C%22%22%2C34%5D%5D)

["0,01327%","0.01327%","0.01%","13.27%","132.7%"]

Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20100101 Firefox/8.0

MathJax is loaded, ready, queue length: 0