Can someone help me? i think there's something wrong with my code..

It says that xL and xR of both equations are wrong... and the outputs; some are -ve and some are +ve.

% Part a
f=@(x) (x.^3-3*x.^2-4*x+12)/(x-2);  
xL=[1.999 1.9999 1.99999 1.999999];
xR=[2.0000001 2.000001 2.00001 2.0001];
y1L=f(xL)  % DO NOT CHANGE CODE ON THESE TWO LINES
y1R=f(xR) % Leave the semicolons off to see the y-values and estimate the limits

% Part b
g=@(x) (x.^2-4*x)/abs(x-4);
xL=[3.999 3.9999 3.99999 3.999999];
xR=[4.0000001 4.000001 4.00001 4.0001];
y2L=g(xL)  % DO NOT CHANGE CODE ON THESE TWO LINES
y2R=g(xR) % Leave the semicolons off to see the y-values and estimate the limits

[Rik]

Today I formatted your code, next time, use the {}Code button. See here for a GIF showing how to do it.

[Rik]

This code runs without error for me. What error are you getting? What release are you on?

[Maryam AlKhoury]

i cant leave space between them... when i click enter nothing happens. (this is an assignment placed by my teacher and i have to complete it)

Answer 1

[madhan ravi]

>> f=@(x) (x.^3-3*x.^2-4*x+12)/(x-2);  
xL=[1.999 1.9999 1.99999 1.999999];
xR=[2.0000001 2.000001 2.00001 2.0001];
y1L=f(xL)  % DO NOT CHANGE CODE ON THESE TWO LINES
y1R=f(xR) % Leave the semicolons off to see the y-values and estimate the limits
% Part b
g=@(x) (x.^2-4*x)/abs(x-4);
xL=[3.999 3.9999 3.99999 3.999999];
xR=[4.0000001 4.000001 4.00001 4.0001];
y2L=g(xL)  % DO NOT CHANGE CODE ON THESE TWO LINES
y2R=g(xR)

y1L =

     -4.0030

y1R =

     -3.9997

y2L =

     -3.9990

y2R =

      4.0001

>>

[madhan ravi]

where do you see error from the above?

[madhan ravi]

are you sure you are using matlab? it doesn't look like one

[Maryam AlKhoury]

yes it's MatLab Grader

[madhan ravi]

I haven't used it but all I can say is the above code works with precise function passing with function handle I don't see why the error shows up then

Answer 2

[Maryam AlKhoury]

this is what i get