SF Square Root Extended SF Square Root Extended Oblique ver 1.0; 2000. Freeware for non-commercial use. SFSquareRootExtended-Oblique SF Square Root Extended Oblique is a trademark of the ShyFonts Type Foundry. ShyFonts Type Foundry ShyFonts Type Foundry SF Square Root Extended Oblique is a trademark of the ShyFonts Type Foundry. http://www.shyfonts.com http://www.shyfonts.com SF Square Root Extended Oblique.ttf