https://gcc.gnu.org/onlinedocs/gfortran/Unary-operators.html
Unary operators (The GNU Fortran Compiler)
Unary operators (The GNU Fortran Compiler)
unary operatorsgnufortrancompiler
https://ir.cwi.nl/pub/29012
Centrum Wiskunde & Informatica: Linear unary operators in process algebra
unary operatorsin processcentrumwiskundeinformatica
https://help.libreoffice.org/latest/en-GB/text/smath/01/03090100.html
Unary/Binary Operators
binaryoperators
https://help.libreoffice.org/latest/en-US/text/smath/01/03090100.html
Unary/Binary Operators
binaryoperators