
Re: What is wrong with 2Pi?
Posted:
Jun 15, 2013 4:17 AM


On 14/06/2013 09:47, Alexei Boulbitch wrote: > Dear community, > > This works: > > Manipulate[ > Plot[Sin[a x], {x, 0, 4 Pi}], {{a, 1}, 0, 6.28, > VerticalGauge[##, ImageSize > 50] &}, ControlPlacement > Left] > > This > > Manipulate[ > Plot[Sin[a x], {x, 0, 4 Pi}], {{a, 1}, 0, 2 \[Pi], > VerticalGauge[##, ImageSize > 50] &}, ControlPlacement > Left] > > however, does not work. I cannot move the gauge in this latter case, while it is easy to move it in the former one. > > So, if I am right, is it Pi placed instead of 6.28 that disturbs the functioning? Please check it. Looks like a bug. > > Alexei > > > Alexei BOULBITCH, Dr., habil. > IEE S.A. > ZAE Weiergewan, > 11, rue Edmond Reuter, > L5326 Contern, LUXEMBOURG > > Office phone : +35224542566 > Office fax: +35224543566 > mobile phone: +49 151 52 40 66 44 > > email: alexei.boulbitch@iee.lu > > > > If you initialise a to a real number, this problem goes away:
Manipulate[ Plot[Sin[a x], {x, 0, 4 Pi}], {{a, 1.0}, 0, 2 \[Pi], VerticalGauge[##, ImageSize > 50] &}, ControlPlacement > Left]
David Bailey http://www.dbaileyconsultancy.co.uk

