What is the name to refer to the width of one graphic function

[lanz]

Hi,

I want to know the technical name of the width of a graphic funcion.

In the example I give at the bottom, the width of the function is painted by an arrow. Maybe the noun is amplitude?


http://img528.imageshack.us/img528/8905/graphfh8.png

Thanks with anticipation

 

[mgb_phys]

Not amplitude, I would say either width, x extent, or delta x $$\Delta x$$

 

[tiny-tim]

Welcome to PF!

I want to know the technical name of the width of a graphic funcion.

In the example I give at the bottom, the width of the function is painted by an arrow. Maybe the noun is amplitude?

Hi lanz! Welcome to PF!

Is this part of a larger problem?

You seem to be asking for the name of something that has no physical or mathematical significance.

 

[lanz]

Hi lanz! Welcome to PF!

Is this part of a larger problem?

You seem to be asking for the name of something that has no physical or mathematical significance.

hi,

No, it is not a part of larger problem no it`s simply that question

 

[lanz]

Not amplitude, I would say either width, x extent, or delta x $$\Delta x$$

Thank you for teh answer but I can´t see the picture you have put

 

[tiny-tim]

Thank you for teh answer but I can´t see the picture you have put

I can see from the code that mgb_phys's LaTeX says "or ∆x"

 

[HallsofIvy]

Of course, the distance you have shown with the arrow is NOT a property of the function alone. It depends upon the exact value of y also.

If you meant that width where y is the y- coordinate of the focus, then your line, through the focus of the parabola and parallel to the directrix, is the "Latus Rectum" and your width is the length of the latus rectum. Of course, that only exists for conic sections.