Mathematica has the most efficient method of entering equations into computer.  You will need to learn a few control+something key combinations to enjoy its full power but you can always get your work done either by using their menu, or by looking up the control+something key stroke combination from the menu.

How to enter +, −, × and ÷ operations

For additions and subtractions, use + and −.

For multiplications, use a space character or a * character.  For example should be entered as either x y or x*y.

For divisions, use a / character.  For example should be expressed as x/y.

For grouping the operations, use parenthesis.  For example should be entered as (x+y)/(z+w).

How to enter fractions

You can enter fraction as an actual fraction by using the control-/ key combination.

You can also find the fraction template through menu under: “Pallets”->”Writing Assistant”

Under “Typesetting” section,

you will find the the control-key sequence for each command by hovering your mouse over each one.

How to enter roots

You can enter square and other roots the control-/ key combination.

You can also find the fraction template through menu under: “Pallets”->”Writing Assistant”  You will the the control-key sequence for each command by hovering your mouse over each one.

Cube root and other roots can be entered by using the following key combination

You can also find the fraction template through menu under: “Pallets”->”Writing Assistant”

How to enter subscripts and superscripts (exponents)

 

• Entering Expressions in Mathematica
• Entering Functions in Mathematica
• Entering Greek Letters and Symbols in Mathematica