Prime

Type it

Ways to write the Prime symbol
UnicodeU+2032
LaTeX'
HTML entity′
Character′

Meaning

Written after a function name to mean its derivative. It is also used to name a related object, such as A′ for a second point near A, and for minutes of arc. Compare with Partial Derivative and Integral.

How to read it

f′(x)

is read “f prime of x”.

More Calculus symbols