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ptc-54916801-Visitor
1-Visitor
February 5, 2014
Solved

X Y plots on MathCAD 15.0

  • February 5, 2014
  • 5 replies
  • 11385 views

Hi,

Can someone explain how to plot the graphs of

y=x^4

and y^2= 24x

on the same plot to enable me to work out the enclosed area between the two curves.

Thanks in advance

Matt

Best answer by Werner_E

A variable which has been assigned a value can't be used for a quickplot.

See the attached file for some solutions.

5 replies

P
ptc-54916801-VisitorAuthor
1-Visitor
February 5, 2014

If noone guessed I'm using MathCAD 15.0 programme

M
MikeArmstrong1-Visitor
1-Visitor
February 5, 2014

Not sure we could have guessed from your original post

Mike

M
MikeArmstrong1-Visitor
1-Visitor
February 5, 2014

Something like thjis?

Mike

    P
    ptc-54916801-VisitorAuthor
    1-Visitor
    February 5, 2014

    How do you get that but I get this?!

    I'm obviously missing something here!!

    And I need the second equation to be y(sqrd)

    y^2 = 24x

    M
    MikeArmstrong1-Visitor
    1-Visitor
    February 5, 2014

    Have a look at the attached.

    It seems you put a decimal after the y2 definition. Make sure you start the brackets immediately after the variable.

    W
    Werner_E25-Diamond I
    25-Diamond I
    February 5, 2014

    Something like the attached, guess.

    Unfortunately Mathcad still does not plot implicit functions, so you have to reformulate it either explicit to x or to y.

    @Mike: I think you misinterpreted the second function

    05.02.png

      M
      MikeArmstrong1-Visitor
      1-Visitor
      February 5, 2014

      Good point Werner,

      I didn't want to change the formula as I wanted to show him how to graph it. Superb work by the way.

      P
      ptc-54916801-VisitorAuthor
      1-Visitor
      February 7, 2014

      Thanks for your help.

      I have got down to plotting the graphs but still am not having any luck.

      Can anyone help to solve my problem?! I just need those graphs to be plotted on the same axis

      Cheers

      W
      Werner_E25-Diamond IAnswer
      25-Diamond I
      February 7, 2014

      A variable which has been assigned a value can't be used for a quickplot.

      See the attached file for some solutions.

      L
      lturek1-Visitor
      1-Visitor
      February 8, 2014

      How did you do the shading/hatching of the area between the two curves in your post above?

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