[Tex/LaTex] What font package do I use to get the vertical Russian/German style integral signs

fontssymbols

What font package do I use to get the vertical Russian/German style integral signs? (subject says all)

Best Answer

The German one can be produced with the wasysym package. More precisely, if loaded without arguments, then the package provides a \varint command for the upright integral. If loaded with the integrals option, it overrides the normal \int command.

The integrals from mathabx (it redefines \int) are beckwards slanted when used in inline style and upright when in display style.

(Generally if you look for a symbol, detexify and the comprehensive symbol list are of invaluable help.)