Every non-zero complex number has precisely four fourth roots, lying at the vertices of a square centered at 0. To get a continuous fourth root function, we may slit the plane by removing the negative real axis. The resulting fourth root that is real and positive along the positive real axis is the "principal branch" of fourth root, whose image is light green. The other three branches, obtained by rotating the image 1/4, 1/2, or 3/4 of a turn about 0, fit neatly together.
Made entirely from recycled plastic bottles and stretched over a lightweight, recycled frame, our custom eco canvases are a great way to introduce some sustainable art to your online store – even the packaging is made from 100% recycled content! Better yet, they’re almost half the weight of traditional wooden canvases and cheaper, too.
