# Hypertext Help with LaTeXBinary and relational operators

Some "math" symbols are obtained by typing the corresponding keyboard character. Examples include
 + - = < >
Note: plus, minus, and equal sign may be used in either text or math mode, but < and > are math mode only (they produce inverted exclamation and question marks, respectively, in text mode).

The following commands may be used only in math mode.

• \pm plus or minus sign
• \mp minus or plus sign
• \times times (an "x")
• \div divided by sign
• \ast an asterisk (centered)
• \star a five-point star (centered)
• \bullet a bullet
• \circ an open bullet

• \leq less than or equal to
• \ll much less than
• \subset is a subset of
• \geq greater than or equal to
• \gg much greater than
• \equiv equivalence symbol
• \sim similar to
• \simeq similar or equal to
• \approx approximately equal to
• \neq not equal to
• \per "perpendicular to" symbols
• \propto proportional to

Note that "greater than" and "less than" are obtained simply by entering > and <.

A slash, indicating "not" can be placed through a symbol (or a letter) with the \not command. For example, not less than is

  \not<

and not less than or equal to is
 \not\leq

If the slash isn't properly positioned it can be moved by putting a math mode spacing command between the \not and the symbol.

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