Gnuplot
Gnuplot is a portable, command-driven graphing utility widely used in scientific computing to plot functions, data files, and script-generated figures across Linux, Mac, and Windows environments without a GUI dependency. As a hard skill it requires fluency in Gnuplot's scripting syntax, multiplot layouts, custom terminal and output formats (PNG, SVG, PDF, LaTeX), and the fit command for nonlinear least-squares regression. Battery researchers and engineers apply Gnuplot to generate reproducible plots in automated data-processing pipelines, produce consistent figure styles for technical reports, and visualize large formation or cycling datasets without opening a full data-analysis application.
