In mathematics, **partial derivative**, or "partial differential", signified by curl d or "curly d" derivative symbol (∂), is an infinitesimal change in a function consisting of two or more variables when one of the variable changes and the others remain constant. [1] In the function z = f(x,y), for instance, the partial derivative of *z* with respect to *x*, while *y* remains unchanged is:

History

The notation and logic of the partial differential or partial derivative was introduced in 1786 by French mathematician Adrien-Marie Legendre and later adopted by German mathematician Carl Jacobi in 1841.

References

1. Daintith, John. (2005). *Oxford Dictionary of Science. *Oxford University Press.

External links

● Partial derivative – Wikipedia.