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Plotting a curve

Shamsudeen Akanbi
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Joined: Dec 24, 2010
Posts: 72
I've been given an assignment to plot the curve of a parabola: The question goes thus; "Write a program to plot a curve y2 = 16x between y = 0 and y = +-30(The parabola lines should be represented with Letter D). The space between each alphabet is 15mm". Please guys the "y2" is y squared. I've been trying to figure to out how to do these but it's just looking too much. He also said we should include the plot of the curve. I don't know what to do and I'm counting on you all please i need some help. In-fact can java do this?
Maneesh Godbole
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Joined: Jul 26, 2007
Posts: 10535
    
    9

What have you tried so far and where are you stuck?
Do you know how to solve this problem mathematically? Also what is "The space between each alphabet is 15mm"?


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Shamsudeen Akanbi
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Joined: Dec 24, 2010
Posts: 72
I mean how do i start inputting the values of x in my program so that the dependent variable y gets squared, i don't want to pass it in a method.
Jon Avadis
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Joined: Jul 20, 2011
Posts: 49

Shamsudeen Akanbi wrote:I mean how do i start inputting the values of x in my program so that the dependent variable y gets squared, i don't want to pass it in a method.


Im not sure what exactly your question is. If you know what x is, you solve the equation for y and then calculate y.
Now you have both values and can plot 1 point, for each pair for x and y.
Java can do that for sure.

About the plotting: That is very unclear. Are you supposed to plot this as a textfile, where points of the parabol are represented by the character 'D'?



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Shamsudeen Akanbi
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Joined: Dec 24, 2010
Posts: 72
Yep, i know my 'y' i can represent the scale on the y-axis to be 1 cm to rep 1 unit, then i generate values for 'x'; with these, i then plot the graph and represent each points with a D instead of a dot(.).
Jon Avadis
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Joined: Jul 20, 2011
Posts: 49

Ok, but what part do you have questions about?
It can definitively be done in java, i just did it for fun.

Heres the plot i got (it looks distorted because " " have less width than "D")

Shamsudeen Akanbi
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Joined: Dec 24, 2010
Posts: 72
Can you send m̶̲̥̅̊ε̲̣̣̣ the codes that solves it Bro
Rob Spoor
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Joined: Oct 27, 2005
Posts: 19783
    
  20

No.


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Jon Avadis
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Joined: Jul 20, 2011
Posts: 49

Shamsudeen Akanbi wrote:Can you send m̶̲̥̅̊ε̲̣̣̣ the codes that solves it Bro


As Rob verbosely pointed out: No.
But if you could explain where you have difficulties, i could give you a pointer.
 
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