List of operations

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This is a list symbols used to denote operations and operators.

1 Mathematical
2 Electronics
3 See also

[edit] Mathematical

$+ \!\$ (plus) is the symbol for addition. Check page for other uses.

$- \!\$ (minus) is the symbol for subtraction.

$* \!\$ and $\cdot \!\$ are the symbols for multiplication. Check page for other uses.

$/ \!\$ and $\div \!\$ are the symbols for division.

${}^\wedge \!\$ (caret) is the symbol for power.

$! \!\$ is the symbol for factorial.

# is the symbol for primorial.

$= \!\$ (equals sign) is the symbol for equality.

$< \!\$ is the symbol for less than.

$\le \!\$ is the symbol for less than or equal to.

$> \!\$ is the symbol for greater than. It is basically a reversed less-than sign.

$\ge \!\$ is the symbol for greater than or equal to. It is basically a reversed less-than-or-equal-to sign.

${}^* \!\$ (star) is a symbol used to denote the complex conjugate of a complex number.

^— (overline or overbar), as in $\overline{x} \!\$ , is also used to denote the complex conjugate of x. Check page for other uses.

$\bowtie$ is the symbol for the natural join operation in relational algebra.

[edit] Calculus

$d \!\$ is the symbol for the derivative.

$' \!\$ (prime) is a symbol for derivative with respect to another implied variable (for example in dy/dx, x is the implied variable). In some cases where multiple variables are present, the implied variable is the spacial variable. Note: primes can also denote an alternate variable or function, much like subscripts. Although using primes like subscripts is notation that is in general use, it should be avoided to avoid confusion. Check this page for other uses.

$\dot{} \!\$ (over dot) is also a symbol used for derivative with respect to another implied variable. In many cases, the implied variable is t for time.

$\partial$ is the symbol for the partial derivative.

$\nabla \!\$ (nabla) is the symbol for the gradient.

$\nabla \cdot \!\$ is considered a single operator, and is the symbol for the divergence.

$\nabla \times \!\$ is considered a single operator, and is the symbol for the curl.

$\circ \!\$ is the compose operator. F(x) $\circ$ G(x) = F(G(x)).

[edit] Logic

$' \!\$ (prime) is the symbol for the Complement. Check this page for other uses.

^— (overline or overbar), as in $\overline{x} \!\$ , is also used to denote complement of x. Check page for other uses.

$\backslash \!\$ (backslash) is also used to denote the complement or inverted input especially of a digital electronic device. For example, \x would denote the complement of x.

$\wedge \!\$ (wedge) is the symbol for and meaning logical conjunction. $* \!\$ or $\cdot \!\$ is also used to denote this in binary logic because it has the same properties as the wedge in that context.

$\vee \!\$ (vee) is the symbol for or meaning logical disjunction. In binary logic, $+ \!\$ is also used to denote this because it has the same properties as the vee in that context.