Matlab Help - Topic

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Sep 8 2016 04:08pm

How do I plot this ridiculous function on matlab?
I need to do assignments 2-1 and 2-2.

I want h versus t....
This is what I have so far.. but obviously it doesnt work lol
k1 and k2 are just constants.

Code

k1 = 7.077*10^-4
k2 = 4.9216*10^-4

t = linspace(0,1,10);
(-2/k2)*(h^.5) - ((2*k1)/(k2^2))*log(k1-k2*(h^.5)) = t + (-2/k2)*(5^.5) - ((2*k1)/(k2^2))*log(k1-k2*(5^.5))
figure
plot(t,h)

FaceDeath

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Sep 8 2016 06:18pm

google it

This post was edited by FaceDeath on Sep 8 2016 06:43pm

FamilyGuyViewer

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Sep 8 2016 06:33pm

Quote (FaceDeath @ Sep 8 2016 07:18pm)

why dont you try a couple of questions yourself?
just as an exercise to see if you can do it

I did try it? look at my code :bonk:

2wo1ne

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Sep 8 2016 07:42pm

where do u define h?

FamilyGuyViewer

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Sep 8 2016 08:09pm

Quote (2wo1ne @ Sep 8 2016 08:42pm)

where do u define h?

nowhere, but I just tried syms h.. so tat didnt work either.

its asking to plot h versus t

so i have to isolate h and set it equal to something but.. its not even possible with this type of equation...

MSX98

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Sep 8 2016 10:08pm

Those are some strange looking hieroglyphics you got there

FamilyGuyViewer

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Sep 9 2016 11:30am

anyone?

FaceDeath

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Sep 9 2016 11:32am

Quote (FamilyGuyViewer @ Sep 9 2016 06:30pm)

anyone?

ppl probably getting sick of doing your work for u

FamilyGuyViewer

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Sep 9 2016 11:59am

Quote (FaceDeath @ Sep 9 2016 12:32pm)

ppl probably getting sick of doing your work for u

why do u keep posting here , if ur not gonna help?

FamilyGuyViewer

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#10

Sep 9 2016 01:31pm

I tried doin meshgrid.. but its not working either

Code

k1 = 7.077*10^-4;
k2 = 4.9216*10^-4;
x = 0:1:5;
y = 0:1:5;
[x,y] = meshgrid(x,y);
z = (-2/k2)*(y.^.5) - ((2*k1)/(k2^2))*log(k1-k2*(y.^.5)) - x + (2/k2)*(5^.5) + ((2*k1)/(k2^2))*log(k1-k2*(5^.5));
mesh(x,y,z)

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