u/Few_Equivalent6783 — reddlx

Hi everyone,

I’ve been studying from James Stewart’s Calculus: Early Transcendentals and I’m consistently impressed by the quality of the diagrams and function graphs. Two things specifically stand out:

Resolution Independence: The images are clearly vector-based (PDF/SVG/EPS). You can zoom in 600% and the curves, axes, and labels remain perfectly sharp with zero pixelation.
Typographic Consistency: The font used for labels (like $x, y, f(x)$ or complex integrals) in the figures appears to be the exact same size, weight, and typeface as the main body text. It doesn't look like a "screenshot" pasted in; it looks integrated.

Does anyone know the specific workflow or software used for these?

Are they using Asymptote or TikZ/PGFPlots directly in the LaTeX source? Are these slow?
Or is this done in Adobe Illustrator using imported LaTeX font metrics?
How do they ensure the line weights (0.5pt for axes, 1.5pt for curves) stay consistent across hundreds of scaled images?

I’m a trying to achieve this same "textbook look" for my own workbook. Even complex images not just graphs are Resolution independent.