How to rescale x- axis?

so when i plot my function, i get a wide graph.

 but i need a narrower graph.

I tried to used limx function and I thought i got it, however, when changing the input value, meaning get a different graph that is wider than 15, my graph will cut off due to limx. I could increase the limx interval however, if the input keeps on changing, i cannot use limx. is there a way you can commend Matlab to set auto scale like the bottom graph? so whatever input value i give, it can always adjust scale to become a narrower graph.

(This is what i get when i change my input value)

(This is what I want my graph to look like)

Answer 1

[David Goodmanson]

Hi Petronas,

If the width of the spiral is proportional to some input value, you can come up with an appropriate constant and use

xlim([-C*input_value, C*input_value])

and if the plot limits need to be some more complicated function of some input value then you can plug that function into the xlim expression.

[Star Strider]

Try:

axis equal

[PetronasAMG]

OMG it worked!! Thank you so much!!! Just to make sure so i can really utilize this function next time, what does axis equal exactly do?

[Star Strider]

As always, my pleasure!

The axis equal call uses the same length for the data units along each axis.

[David Goodmanson]

good one!