div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-expansion-of-a-homogeneous-function-in-spherical-harmonicshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The Expansion of a Homogeneous Function in Spherical Harmonics loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader038vdocumentsnetreader038viewer2022100510575067b21a28ab0f07acbab0html5thumbnails1jpg width=140 height=200 divp©1916 Nature Publishing Grouppdiv