Tangent Line Calculator
Find the tangent and normal line at a given point
Examples: sin(x), exp(-x^2), ln(x), sqrt(x), pi
Numerical estimate: 2.00000000002
Point x
1
Point f(x)
1
Intercept b = f(x) β mx
-1.00000000002
Derivative error estimate
9.16688946972e-12
Method: Tangent approximation using a numerical derivative
This is a finite-sample numerical approximation, not symbolic calculus or a proof that a limit exists. Check discontinuities and the reported error estimate.