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anonymous
 one year ago
Topic: MATLAB 101
Can someone help me with MATLAB ? I have 0.05% idea how this thing works. I'm just following instructions from the internet, but I'm still stuck with the problem below. Please anyone, teach me.
anonymous
 one year ago
Topic: MATLAB 101 Can someone help me with MATLAB ? I have 0.05% idea how this thing works. I'm just following instructions from the internet, but I'm still stuck with the problem below. Please anyone, teach me.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I already done with letter a. I used inline function on this question. I have no idea how to do letter b. Can anyone help me out?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1What have you learned so far? Quadratic formula, Newton's method, fixed point iteration, Newton's for systems, or all of the above?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0only quadratic formula i think :/ never heard of the other ones..

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Is this a course on Matlab only, or it's a course on numerical methods/analysis using Matlab as a tool?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we are only focusing on the commands and stuff

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Ok, then there's no expected method to solve the second. For starters, here's an implicit plot of the system (second problem). http://prntscr.com/8o3mfh

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1See if you can reproduce the same plot in Matlab (if you have covered graphics).

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1The solution near (2,3) is the top right intersection.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we are on the equations right now.. and i got 2.4072 and 1.1106

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1So you're in a class? I think you should pay attention to what the instructor is showing you instead!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no i have a vacant right now. This assignment is due on wednesday

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1(2.4,1.1) is definitely not the solution!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so my code is wrong >.<

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Have you examined the graph and be convinced that (2.4, 1.1) is not the answer?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1You can find out if you put your solution into the equations and see if f(x,y)=0, and g(x,y)=0.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Your solution works for g(x,y)=0 only. f(x,y) gives 36.0

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1So what method of solution of polynomial equations have you learned so far?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Not sure if you have included both equations into the 'eqns' parameter of fsolve. That may be your only problem.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh yeah i made x= x(1) and y=x(2)

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1You have missed out the 0 at the end of definition of F(1), which makes the constant 4 instead of 40. That's why when substituted you will get 36! I think that's all you have to correct!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh so now i get 2.696 and 3.3655 ?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1I get 2.6963 and 3.3655 using just display(x).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes! so those are right?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Absolutely. If you need more digits, use a more elaborate version of print.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ahh okay. thank you so much! finally, i can move on with the other exercise xD

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Good! You're welcome! :)
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