Chosen function

Correct notation: x in [-8,8]

Correct notation: z in {0,1,2,3}

better form here
http://www.flickr.com/photos/syngola/414889311/

Chosen function for the project, I'm not crazy, it's step by step constructed. :)

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syngola says:

hi lorenzo, wonderful to see you playing with math ^_^

btw could it be that there is something wrong with the cosine term, when i type it into maple i don't get your function :?

(btw the notation x in IR and -4<=x<=4 does not make much sense, you should write it as x in [-4,4] ;) the same way z in {0,1,..,4} . and when z is in {0,1,2,3,4} where is the fifth function ^_^. don't mind if i am a little pedantic ;) )
Posted 33 months ago. ( permalink )

LorenzoMarchi says:

Peter you're completely right with the notation! I'm a little bit rusty in Math terms, my last exam was ages ago. I've written them this way cause I've meant that this is only the portion in which x is in [-4,4] of the function but you're right. As for the z, it is in {0,1,2,3}. For the cosine term maybe you're right again, I've only translated this

3-(((4-z)/4)*(Math.pow(x,2)-1)/(Math.pow(x, 2)+1) )*(1+0.25*(((8-Math.abs(x)))/4)*Math.cos((x/4 )*(1.5*x)))

maybe I've lost something...can you please check if it's right?

it's always fun playing with math :)
Posted 33 months ago. ( permalink )

syngola says:

hi lorenzo, i put a 'translation' of your function in my photostream, you'll find it here.
it seems to me that the interval for x should be [-8,8] ^_^

nice function you found!!
Posted 33 months ago. ( permalink )

LorenzoMarchi says:

you're right again with [-8,8] but why your cosine argument is 3/8x and not 3/8x^2??

I've cut and pasted the function from the script so that should be correct...?_?

PS thank you for the efforts :P
Posted 33 months ago. ( permalink )

syngola says:

the square is lost in translation ^_^ i deleted it and didn't put it in again... things happen...
Posted 33 months ago. ( permalink )

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Chosen function

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syngola says:

LorenzoMarchi says:

syngola says:

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