- #1

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I am guessing I need to find a matrix

**A**that when multiplied by a vector

**x**, it will return another vector with its entries as the averages. Is this correct? Need some hints on how to start this one.

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- Thread starter john425
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- #1

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I am guessing I need to find a matrix

- #2

Gokul43201

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State the problem completely and exactly as it appears in your homework/text/notes.

- #3

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Formulate the following problems in Matrix-difference equation

(2) Each number is the average of the two previous numbers.

- #4

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Here is a PDF link with same exact question (#6):

http://www.math.montana.edu/~shaw/math_221/archive/takeHome3.pdf [Broken]

http://www.math.montana.edu/~shaw/math_221/archive/takeHome3.pdf [Broken]

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- #5

CarlB

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You already know how to convert linear equations into matrices. For this case, the linear equations are going to be:

[tex]x' = (x+y)/2[/tex]

[tex]y' = x[/tex]

where x and y are the last two consecutive elements of the series (when you've calculated it up to some point) and x' and y' are the last two consecutive elements after you've calculated it for the next step.

For example, if the series looks like

... 22, 12

then y=22, x=12, y'=12 and x'=17.

After the next step in the calculation, the series now looks like:

... 22, 12, 17

Got it?

Carl

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