But, i don't know how do...
I tried, but don't, most failed....
On Thu, Jul 15, 2010 at 11:25 AM, Benjamin Root <ben.r...@ou.edu> wrote:
>
> On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David <
> waleriantu...@gmail.com> wrote:
>
>> Hi all,
>>
>> I have a code base so that:
>>
>>
>> from pylab import *
>> x = arange (3000,3400)
>> y = -108 * (3.0e14 ** 2)/x**2
>>
>> pylab..title("Teste")
>> pylab.savefig("imagem.png")
>> plot(x, y)
>>
>>
>> Well.... the values of the function range(3000,3400) are in Hz......i need
>> to pass GHz which would be in scientific notation as follows bellow:
>>
>> 3000 Hz = 3,0 × 10-6 GHz
>> 3400 Hz = 3,4 x 10-6 Ghz
>>
>> How do I make the graph x-axis is shown in figures
>> scientific notation, for this currently so
>>
>> 3000,3050,3100,....,3400
>>
>> in scientific notation is: (3.0e-6, 3.4e-6)
>>
>> Can someone help me?
>>
>> See my attachment....
>>
>> I need to show this values in scientific notation......
>>
>> Waléria
>>
>>
>>
> Waleria,
>
> I believe you are looking to use the ticker API. Particularly the
> FormatStrFormatter that accepts a sprintf()-like format string to express
> your tick values. For your particular example, --off the top of my head--
> the string format would be "%.1e".
>
> http://matplotlib.sourceforge.net/api/ticker_api.html
>
> I hope this helps.
>
> Ben Root
>
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