Changes

In mathematics, '''exponentiation''' is the name for the operation also called ''raising to a power.'' In simple cases, it refers to repeated multiplication. It is indicated by a ''superscript,'' a small number or expression written above the line:

In mathematics, '''exponentiation''' is the name for the operation also called ''raising to a power.'' In simple cases, it refers to repeated multiplication. It is indicated by a ''superscript,'' a small number or expression written above the line:

*2⁶, "two to the sixth power," 2& middot;2& middot;2& middot;2& middot;2& middot;2 = 64

*2⁶, "two to the sixth power," 2·2·2·2·2·2 = 64

*''x''⁴, "''x'' to the fourth power," ''x''·''x''×''x''×''x''

*''x''⁴, "''x'' to the fourth power," ''x''·''x''×''x''×''x''

*''y''^''n'', "''y'' to the n-th power," ''y''& middot;''y''& middot;''y''& middot; ... & middot;''y'', where ''y'' appears ''n'' times.

*''y''^''n'', "''y'' to the n-th power," ''y''·''y''·''y''· ... ·''y'', where ''y'' appears ''n'' times.