Shortcut keys for inserting symbols and templates into the equation
Some of the commonly used symbols:
\infty - Infinity
\leq - Less than or equal
\geq - Greater than or equal
\partial - Partial differential
\sum - Summa
\prod - Product Sign
\subset - Contained in
\in - Element of
\cup - Union (if you want to see big symbol, enter
\bigcup
\neq - Not equal to
\approx - Almost equal to (asymptotic to)
\equiv - Identical to (equivalent)
\int - Integral
\oint - Contour integral
How to use all these symbols outside the equation, select the option Use Math AutoCorrect rules outside of math regions in the Word Options. How to do it, see Choosing Math AutoCorrect Options.