A linear approximation to a function at a point can be computed by taking the first term in the Taylor series

# Linear Approximation

## See also

Maclaurin Series, Taylor Series## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Linear Approximation."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/LinearApproximation.html