The size of the paper (e.g., A4 standard).

The number of columns (4 columns).

The language of the document.

The font type (e.g., "a4" font).

\ref gives the page number, \pageref gives the item number.

\ref is for figures, \pageref is for tables.

\ref is the label, \pageref is the reference.

\ref gives the item number (e.g., "Figure 1"), while \pageref gives the page number (e.g., "14").

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(Parentheses)

{ } (Curly Braces)

" " (Double Quotes)

[ ] (Square Brackets)

In physics, the mass-energy equivalence is stated by the equation $E=mc^2$, discovered in 1905 by Albert Einstein.

In physics, the mass-energy equivalence is stated by the equation E=mc^2, discovered in 1905 by Albert Einstein.

\text{In physics, the mass-energy equivalence is stated by the equation $E=mc^2$, discovered in 1905 by Albert Einstein.}