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How to decrease the iteration step from 1 to 0.1?

asked 2012-05-27 13:43:01 -0500

dnizetic gravatar image

updated 2012-05-27 13:43:12 -0500

@interact
def _(a=((0.1)..(5.00))):
  ...
  show(pl1+pl2+pl3+pl4);

I would like 'a' to be iterated by the step 0.1, and not 1.

How can I achieve this?

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answered 2012-05-27 14:52:18 -0500

DSM gravatar image

Here's one approach, which works by giving Sage enough values that it can guess what step you want:

sage: (0.1, 0.2, .., 0.5)
<generator object ellipsis_iter at 0x11bce0fa0>
sage: list(0.1, 0.2, .., 0.5)
[0.100000000000000, 0.200000000000000, 0.300000000000000, 0.400000000000000, 0.500000000000000]
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answered 2012-05-27 18:40:31 -0500

calc314 gravatar image

You can also specify the details using the command slider. The syntax is:

slider(a,b,step,start_value)

For example, you might have the following:

@interact
def _(a=slider(0.1,5.0,0.1,3)):
    print a

This defines a slider with values from 0.1 to 5 that steps by 0.1, and the interact will launch with the slider set to 3.

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Asked: 2012-05-27 13:43:01 -0500

Seen: 119 times

Last updated: May 27 '12