Martinez's Octave Assignment: Difference between revisions
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==Evaluating an Integral== |
== Evaluating an Integral == |
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To evaluate an integral you must first define the function y = f(x). Follow the simple steps below. |
To evaluate an integral you must first define the function y = f(x). Follow the simple steps below. |
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==== Example ==== |
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y= sin(x); |
y= sin(x); |
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endfunction |
endfunction |
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># We are trying to integrate x from 0,2. |
># We are trying to integrate x from 0,2. |
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> [area]=quad("f",0,2) |
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area |
>area=quad("f",0,2) |
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area =1.4161 |
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This example shows <math>\int_{0}^{2}\sin{x}\, dx</math> where the correct answer is 1.4161. |
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Latest revision as of 16:47, 1 October 2010
Evaluating an Integral
To evaluate an integral you must first define the function y = f(x). Follow the simple steps below.
Example
>function y= f(x)
y= sin(x);
endfunction
># We are trying to integrate x from 0,2.
>area=quad("f",0,2)
area =1.4161
This example shows where the correct answer is 1.4161.
