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Student Support Forum: 'Simple Issue with the Interval command' topicStudent Support Forum > General > Archives > "Simple Issue with the Interval command"

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Author Comment/Response
Michael Woodhouse
07/26/12 08:22am

After taking some limits I get a lot of terms of Interval[{0,0}], which I want to set to exactly zero so that they will all cancel out.

So Far I haven't found a method to do this, I'm hoping that this is a simple case of not knowing the correct command.

Thanks,
Michael



Here is an example output if it helps...

(-0.0192152 -
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) + (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) - (0.0387717 -
0.00491706 I) E^(-0.00202536 t) + (0.0343379 +
0.248776 I) E^(-0.000551013 t), (0. - 1. I) Interval[{0,
0}] - (0. + 1. I) Interval[{0, 0}] + Interval[{0, 0}] -
1. ((-0.0192152 -
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) + (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) - (0.0387717 -
0.00491706 I) E^(-0.00202536 t) + (0.0343379 +
0.248776 I) E^(-0.000551013 t)) ((0. - 1. I) Interval[{0, 0}] +
Interval[{0, 0}]) - (0.134237 -
0.791278 I) (E^((-0.00113025 - 0.000767766 I) t) -
1. E^((-0.000869752 + 0.000767766 I) t)) ((0. + 1. I) Cos[
0.1001 t] + Sin[0.1001 t]), (-0.0932753 -
0.100422 I) E^((-0.00271181 - 0.00196132 I) t) - (0.0932753 -
0.100422 I) E^((-0.00271181 + 0.00196132 I) t) +
0.00622528 E^(-0.00202536 t) +
0.180325 E^(-0.000551013 t), (0. + 1. I) Interval[{0, 0}] + (0. +
1. I) Interval[{0, 0}] + Interval[{0, 0}] -
1. ((-0.0192152 -
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) + (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) - (0.0387717 -
0.00491706 I) E^(-0.00202536 t) + (0.0343379 +
0.248776 I) E^(-0.000551013 t)) ((0. + 1. I) Interval[{0, 0}] +
Interval[{0, 0}]), (0.0192152 +
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) - (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) + (0.0387717 -
0.00491706 I) E^(-0.00202536 t) - (0.0343379 +
0.248776 I) E^(-0.000551013 t), (0. + 1. I) Interval[{0,
0}] + (0. + 1. I) Interval[{0, 0}] + Interval[{0, 0}] -
1. ((-0.0192152 -
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) + (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) - (0.0387717 -
0.00491706 I) E^(-0.00202536 t) + (0.0343379 +
0.248776 I) E^(-0.000551013 t)) ((0. + 1. I) Interval[{0, 0}] +
Interval[{0, 0}]), 0, (0. + 1. I) Interval[{0, 0}] + (0. +
1. I) Interval[{0, 0}] + Interval[{0, 0}] -
1. ((-0.0192152 -
0.138977 I) E^((-0.00271181 - 0.00196132 I) t) + (0.0236489 -
0.114716 I) E^((-0.00271181 + 0.00196132 I) t) - (0.0387717 -
0.00491706 I) E^(-0.00202536 t) + (0.0343379 +
0.248776 I) E^(-0.000551013 t)) ((0. + 1. I) Interval[{0, 0}] +
Interval[{0, 0}])

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Subject (listing for 'Simple Issue with the Interval command')
Author Date Posted
Simple Issue with the Interval command Michael Wood... 07/26/12 08:22am
Re: Simple Issue with the Interval command Bill Simpson 07/26/12 6:42pm
Re: Re: Simple Issue with the Interval command Michael Wood... 07/27/12 05:53am
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