WOLFRAM

Wolfram Language & System Documentation Center

How to | Change the Form of Input and Output

The user interface for the Wolfram System provides many options for formatting input and output.

The sum of from to is :

Wolfram Language code: Sum[1 / n ^ Sqrt[2], {n, 1, ∞}]

While correct, this does not look like traditional mathematics. Select the cell group, then choose the menu item Cell ▶ Convert To ▶ TraditionalForm:

Wolfram Language code: Underoverscript[∑, n = 1, ∞](1/n^Sqrt[2])

Alternatively, if you only want to format the answer, apply TraditionalForm:

Wolfram Language code: TraditionalForm[Sum[1 / n ^ Sqrt[2], {n, 1, ∞}]]
    

InputForm and StandardForm work in reverse.

Use InputForm to find out how to type an expression into the Wolfram Language:

Wolfram Language code: InputForm[ζ(Sqrt[2])]

StandardForm is more compact than InputForm and is unambiguous to the Wolfram Language:

Wolfram Language code: StandardForm[ζ(Sqrt[2])]

TraditionalForm is sometimes ambiguous; in this case, the Wolfram Language treats f first as a number and then as a function:

Wolfram Language code: StandardForm[f^2 (x + y) + f(x + y)]