17 Tangent Planes and Normal Lines Mathematics LibreTextsCalculate the plane that is tangent for a given expression with the help of a calculating device. Find the level that intersects a certain point on a chart. Employ this powerful resource to establish the gradient and position of the surface at various spots along the function. Get precise outcomes right away with our handy calculator for tangent planes. Discover the tangent direction plane now for a better understanding of your expression's behavior.