Skip to main content
jonass881-Visitor
1-Visitor
September 8, 2017
Solved

Finding two variables function

Hello

 

I would like to ask if is possible to find a function with two variables z(y,x) on Mathcad based on the data I have. It would be nice to find this function and with it to plot the surface.

 

Thank you and good weekend

Jonas

ValeryOchkovAnswer
24-Ruby IV
September 8, 2017
@jonass88 wrote:

Hello

 

I would like to ask if is possible to find a function with two variables z(y,x) on Mathcad based on the data I have. It would be nice to find this function and with it to plot the surface.

 

Thank you and good weekend

Jonas

May be this is any help to you

http://twt.mpei.ac.ru/ochkov/car/c_e.html

View in thread

6 replies

LucMeekes23-Emerald V
23-Emerald V
September 8, 2017

There is an infinite number of functions z(x,y) that pass exactly through the points you provide, two of them being:

z1(x,y)=1*y+0*x

z2(x,y)=0*x+1*y

 

Which one would you think Mathcad should find for you?

 

Success!

Luc

Translate
jonass881-VisitorAuthor
1-Visitor
September 8, 2017
Hey Luc

Thanks for your answer, the numbers in that table are only representatives, in the data I have x,y and z have a different behavior.
Translate
LucMeekes23-Emerald V
23-Emerald V
September 8, 2017

I guess you are looking for an approximation.

You should also read this thread https://community.ptc.com/t5/PTC-Mathcad-Questions/Defining-a-Curve/td-p/483027

 

Success!
Luc

Translate
ValeryOchkov24-Ruby IVAnswer
24-Ruby IV
September 8, 2017
@jonass88 wrote:

Hello

 

I would like to ask if is possible to find a function with two variables z(y,x) on Mathcad based on the data I have. It would be nice to find this function and with it to plot the surface.

 

Thank you and good weekend

Jonas

May be this is any help to you

http://twt.mpei.ac.ru/ochkov/car/c_e.html

Translate
jonass881-VisitorAuthor
1-Visitor
September 8, 2017
Hello Valery

It seems that is exactly what I am looking for. I will check as soon as I use the computer.

Thanks a lot!!
Translate
    ValeryOchkov24-Ruby IV
    24-Ruby IV
    September 8, 2017
    @jonass88 wrote:
    Hello Valery

    It seems that is exactly what I am looking for. I will check as soon as I use the computer.

    Thanks a lot!!

    I am glad to help you.

    If you edit my english text - I will be glad more!

    Sorry Ai nou inglish veri plpkho!

    Translate
      Terms & ConditionsAccessibility statement