MATLAB101 help D:
I'll attached the problem below.

- anonymous

MATLAB101 help D:
I'll attached the problem below.

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- anonymous

I just wanted to see how this will look like. Don't show me the code (I have to figure this one out), just show me your output, so that I can have an idea.

##### 1 Attachment

- anonymous

...a little bit of hints, maybe?

- dan815

okay so

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## More answers

- dan815

u have a 50 by 50 matrix and what are we trying do here with peaks function?

- anonymous

from what I understand, i have to make the 50 by 50 matrices using the "peaks" function. What's a peak function anyway?

- dan815

www.mathworks.com/help/matlab/ref/peaks.html

- anonymous

Yeah I read that. I'm not sure if I should do
Z=peaks(x,y) or do z=peaks(50), x=peaks(50), y=peaks(50)
because it says "Use the peaks function to define X,Y,Z" not sure what this part actually means

- dan815

im looking it up

- dan815

do u hae some data set of some function i can use peaks on?

- kva1992

I believe you should be using the Z=peaks(x,y)

- kva1992

dont quote me but im pretty sure

- dan815

okay

- dan815

what is x and y

- anonymous

no i don't have any set of data..
if i did that, this is how it will look like:

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- anonymous

is it supposed to be like that? O.o

- kva1992

Z = peaks(X,Y); evaluates peaks at the given X and Y (which must be the same size) and returns a matrix the same size.

- kva1992

so if im not misinterpreting that your x and y are 50

- dan815

x and y are both 50 by 50 matrices?

- kva1992

gimme a second lol i may be mistaken

- dan815

oh crapp i cant use peaks i accidentally named some other program peaks, i gotta put in that program in for peaks again

- anonymous

wait i'm confused now, do i need to define x and y with some function?

- dan815

can you open your peaks function code

- kva1992

well if we are basing it off the definition then yes you have to define the x and y and they both must be the same value

- dan815

ok nvm i just renamed the file i can use peaks again

- dan815

http://prntscr.com/8pzvg0

- dan815

like that?

- kva1992

yup thats what it should look like from what i have knowledge of

- anonymous

did you do
z=peaks(50)
figure
mesh(Z) ?

- dan815

>> [X,Y,Z]=peaks(50)
>> surf(X,Y,Z)

- anonymous

surf(x,y,z)
isn't the x and y here represents the matrix then z will be the color of data and the surface height? okay. thank you, i think i got it now :D

- dan815

[X,Y,Z] = peaks(...); returns two additional matrices, X and Y, for parametric plots, for example, surf(X,Y,Z,del2(Z)). If not given as input, the underlying matrices X and Y are
[X,Y] = meshgrid(V,V)

- dan815

u should mess around with it like

- dan815

what happens when you put in a meshed grid 50 by 50 for peaks

- anonymous

ok, i'll try that. I already get the idea, so I think I can manage it now
I'll ask again if I got stuck or confused :P

- anonymous

quick question, are your matrices like the list of numbers/data showing on your command window?

- anonymous

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