いろんなフォントで「eigenfunction」変換
Zen Old Minchoeigenfunction
Yusei Magiceigenfunction
M PLUS 1eigenfunction
Shippori Antiqueeigenfunction
Yuji Maieigenfunction
Dela Gothic Oneeigenfunction
DotGothic16eigenfunction
Train Oneeigenfunction
Hira Minchoeigenfunction
Potta Oneeigenfunction
Reggae Oneeigenfunction
Stickeigenfunction
Zen Kurenaidoeigenfunction
Kosugi Marueigenfunction
Rampart Oneeigenfunction
Hachi Maru Popeigenfunction
New Tegomineigenfunction
RocknRoll Oneeigenfunction
Kaisei Decoleigenfunction
「eigenfunction」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
この漢字は何でしょう？？