rsfs – Ralph Smith's For­mal Script font

The fonts pro­vide up­per­case ‘for­mal’ script let­ters for use as sym­bols in sci­en­tific and math­e­mat­i­cal type­set­ting (in con­trast to the in­for­mal script fonts such as that used for the ‘cal­li­graphic’ sym­bols in the TeX maths sym­bol font). The fonts are pro­vided as Meta­font source, and as de­rived Adobe Type 1 for­mat.
LaTeX sup­port, for us­ing these fonts in math­e­mat­ics, is avail­able via one of the pack­ages calrsfs and mathrsfs.