What kind of units Google Chart uses in trigonometric functions ? Sin(x) function chart looks like sin, when chfd=0,x,0,6.28... 6.28 is not 2 (pi) or 360 (degrees), however equals 2*3.14(pi). Is this coincidental ? Here is an example: https://chart.googleapis.com/chart?cht=lc&chd=t:-1&chs=400x400&chco=FF0000&chfd=0,x,0,6.28,0.02,sin(x)&chxt=x,y&chds=-1,1&chxr=1,-1,1,0.5&chm=R,FF0000,0,0.999,1|r,FF0000,0,0.999,1|r,FF0000,0,0.5,0.501&chma=20,20,20,20 Is it correct ? Thank you
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