17 Tangent Planes and Normal Lines Mathematics LibreTextsCompute the plane that is tangent to a given expression with the help of a calculating device. Discover the plane that intersects a certain spot on a diagram. Utilize this innovative instrument to determine the slope and alignment of the surface at various locations along the equation. Get precise answers instantly with our handy tangent plane calculator. Explore the tangent flat surface now for a better understanding of your expression's behavior.