prodint – A font that pro­vides the prod­uct in­te­gral sym­bol

Prod­uct in­te­grals are to prod­ucts, as in­te­grals are to sums. They have been around for more than a hun­dred years, they have not be­come part of the stan­dard math­e­mati­cian’s tool­box, pos­si­bly be­cause no-one in­vented the right math­e­mat­i­cal sym­bol for them. The au­thors have reme­died that sit­u­a­tion by propos­ing the sym­bol and pro­vid­ing this font.