Aurora is an excellent LaTeX addon, which enables LaTeX based mathematical support, including a variety of symbols and equations.
For Microsoft Office-32, there is a dedicated tab for Aurora in Word. For Office-64, however, there is no tab at all. In this case, aurora has to be activated by insert → object. Clearly, the access is neither direct nor convenience. Targetting better convenience, macros can be defined and then placed in a card, e.g., following scripts define two macros, aurora_inline and aurora_display, to input inline and display style equations.
Sub aurora_inline()
Selection.InlineShapes.AddOLEObject ClassType:="Equation.Ribbit", FileName:="", LinkToFile:=False, DisplayAsIcon:=False
End Sub
Sub aurora_display()
Selection.TypeParagraph
Selection.ParagraphFormat.Alignment = wdAlignParagraphCenter
Selection.InlineShapes.AddOLEObject ClassType:="Equation.Ribbit", FileName:="", LinkToFile:=False, DisplayAsIcon:=False
End Sub