Complex Analysis Poster: Six Basic Functions (Digital Download)

Vistas in the Complex Plane - Six Basic Mappings. A museum-style domain-coloring poster visualizing six foundational complex functions using enhanced phase color map: Identity f(z)=z, Inverse f(z)=1/z, Polynomial (z+1)(z−1)(z+i), Mobius (z−i)/(z+i), Trigonometric sin(pi z), and the essential singularity exp(1/z). Designed for crisp, flexible printing. The poster is a high-resolution digital download with clean labels, consistent scale, and high contrast. You receive maximum-resolution files (300 DPI at the largest supported size) across popular aspect ratios for easy framing.

INCLUDED ASPECT RATIOS AND SUPPORTED SIZES (PDF & PNG formats):
2:3 (max 24×36): 4×6, 8×12, 12×18, 16×24, 20×30 (24x36 or larger PNG file is available upon request as it often exceeds 20Mb Etsy limit)
3:4 (max 18×24): 6×8, 9×12, 12×16, 15×20, 18×24
4:5 (max 16×20): 8×10, 12×15, 16×20
11×14 (max 11×14): 11×14 (exact)

All files print at 300 DPI at their maximum listed size; smaller sizes print at even higher effective DPI (extra crisp). A-series paper (A5/A4/A3, etc.) does not exactly match these aspect ratios; use a minor crop or add a white border for A-sizes.

HOW TO PURCHASE AND DOWNLOAD:
1. Complete your purchase on Etsy.
2. You will be instantly directed to a download page (and receive an email with the link).
3. Download the zip files to your device or computer and unpack.
4. Print at home, a local shop, or through your favorite online printer.
5. Hang it, frame it, or laminate for long-term learning.

PRINTING TIPS:
• Use a desktop or laptop to download files; some mobile devices may not support all formats.
• For best results, print on heavy card stock, semi-gloss, or gloss paper.
• Set your printer to "actual size" and "choose paper source by PDF size“.
• Adobe Reader may be required for PDFs (free: http://get.adobe.com/reader).
• Etsy’s download guide: https://www.etsy.com/help/article/3949

IMPORTANT NOTES:
• This is a digital product. No physical item will be shipped.
• Colors may vary slightly depending on monitor and printer settings.
• This purchase is for personal or single-classroom use only.
• Commercial use, resale, or modification is prohibited.
• Due to the nature of digital files, returns, cancellations, or exchanges are not accepted.
• Some design elements may be adjusted between sizes to preserve layout and legibility.
• Questions? Message the Etsy seller.