Tool/Plotter to draw points (scatter plot or curve) up to 4 on a same graph or 2D plane (and connect points if needed) according to their coordinates.
Points Plotter - dCode
Tag(s) : Functions, Graph Theory
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Points Plotter
Plot points with values table (x,y)
Answers to Questions (FAQ)
What is a curve plotter? (Definition)
A chart plotter is a tool used to visualize a curve. The plotter uses an array of values to determine how the curve should be drawn to pass through each point. It allows you to visualize relationships between variables and observe patterns or trends.
How to plot dots (x,y)?
Use a graph with a 2-dimensional coordinate system, ie: a horizontal axis $ x $ and a vertical axis $ y $ (ideally an orthonormal reference).
Locate the position of each coordinate of the points on each axis, by positioning the value of the abscissa on the axis $ x $ and the value of the ordinate on the axis $ y $.
The position of the point is at the intersection of the vertical line passing through the abscissa and the horizontal line passing through the ordinate.
Example: Place the point of coordinates $ (x,y) = (1,2) $, the point is in horizontal position $ x = 1 $ and vertical position $ y = 2 $
NB: Label the axes appropriately for better understanding.
To calculate the values of a function (affine, polynomial, exponential, etc.), use the image by a function dedicated page on dCode.
How to find the function that corresponds to the dots?
dCode offers an equation finder.
Else, there are interpolation methods that allow you to create an equation that goes through the points. See Lagrange's interpolation or Neville's interpolation.
How to connect the dots?
Draw a line between each point found and the next, so as to form a curve in parts.
The path obtained can possibly represent a drawing if the dot order is preserved.
The curve can also be smoothed to try to better represent the data between the points.
How to draw 2, 3 or 4 plots on the same graph?
Use the different data tables to indicate the other coordinates.
Indicate a different legend to distinguish the curves.
Why using a point plotter?
Line plotters are useful for visualizing how one variable depends on another, for understanding how different variables interact, and can be used to predict how one variable will respond to changes in another variable.
How to display units on each axes?
Axis numbers are by default without units, but it is possible to indicate the unit used in the axis name.
Source code
dCode retains ownership of the "Points Plotter" source code. Any algorithm for the "Points Plotter" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Points Plotter" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Points Plotter" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
Cite dCode
The content of the page "Points Plotter" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source.
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link:
In a scientific article or book, the recommended bibliographic citation is: Points Plotter on dCode.fr [online website], retrieved on 2025-04-16,
