# Plotting a curve

Shamsudeen Akanbi

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posted 5 years ago

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?

Shamsudeen Akanbi

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Posts: 85

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posted 5 years ago

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'?

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'?

*Knowledge Reigns Supreme*

Shamsudeen Akanbi

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Posts: 85

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posted 5 years ago

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(.).

Shamsudeen Akanbi

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Posts: 85

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posted 5 years ago

No.

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