Forbes contributors publish independent expert analyses and insights. I write about green energy tech that will change your life. Have you ever noticed power lines sagging lower on a hot summer day?

Microsoft Excel is designed to organize and interpret small and large amounts of data. Building a curved graph in Excel based on X and Y data points is fairly simple. You begin by adding the data ...

Learn how to make everything from basic line graphs to racing bar charts — all interactive and easily animated — with the echarts4r R package. While I’m mostly settled on ggplot2 for static plots, I’m ...

You can make a line graph in Excel in a matter of seconds using data already entered into the spreadsheet. Line graphs can help make data easier to understand by creating a visual representation of ...

Gridzzly is a beautifully simple tool for anyone who uses grid, graph, or ruled paper. The webapp lets you fine-tune the pattern you need for printing. Just choose the shape (dots, lines, squares, or ...

To help draw a straight line graph from its equation, fill in a table of 𝑥 and 𝑦 values. Plot the pairs of values as coordinates and join to make a line. Make sure you are confident with ...