Thanks Marshall. That solves my problem.
On Sep 28, 10:53 am, Marshall Hampton <[EMAIL PROTECTED]> wrote:
> If you need an exact zero you could do:
>
> slider(-7/10, 7/10, 1/100, 0)
>
> ...unless I misunderstood the question.
>
> -M. Hampton
>
> On Sep 28, 12:09 pm, pong <[EMAIL PROTECTED]> wrote:
>
> > Hi,
>
> > I have the same problem as John did. When I try
>
> > slider(-0.7, 0.7, 0.01, 0)
>
> > the slider start with a very small number but not exactly 0. Can that
> > be fixed somehow? In fact, for my purpose I want it to start at a
> > nonzero value but can hit exact 0 by sliding, how can that be done?
>
> > Also it said in slider? step_size is an integer. Looks like that has
> > been changed in the implementation and maybe the documentation should
> > be catching up soon.
>
> > On Aug 25, 1:31 pm, john_perry_usm <[EMAIL PROTECTED]> wrote:
>
> > > On Aug 25, 2:12 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
>
> > > > On Mon, Aug 25, 2008 at 11:18 AM, Igor Tolkov <[EMAIL PROTECTED]> wrote:
>
> > > > >> Just upgraded to SAGE 3.1.1. The sliders have suddenly started
> > > > >> producing floating-point values; that is,
>
> > > > >> num_approx=slider(1,5,default=2,label="Number of steps")
>
> > > > >> gives me asliderwhose initial value is 2.00200400802, and that when
> > > > >> I slide from left to right can give me values such as 1.3 etc. I
> > > > >> think
> > > > >> this is due to a recent bugfix.
>
> > > > > Yes. Actually the change corrected seemingly arbitrary behavior with
> > > > > sliders when two different forms ofsliderinput produced different
> > > > > results.
>
> > > > >> Typing step_size=1 produces the old, desired behavior, but according
> > > > >> to the documentation step_size=1 is the default.
>
> > > > >> What is the expected future behavior?
>
> > > > > In the future, sliders should be "continuous" by default, that is,
> > > > > having as many possible values as the width of thesliderallows. This
> > > > > is a documentation bug and thank you for pointing it out.
>
> > > > Don't you think asliderbetween 1 and 5 should at least start
> > > > at 1 and end at 5?
>
> > > > William
>
> > > That doesn't happen with either of the constructions I gave; how does
> > > this arise?
>
> > > john perry
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