What Does "Tangent to a Point on a Curve" Mean?
12640
Is there a geometrical definition of a tangent line?
71861
Circles and tangents and circumcircles
30507
What is the intuitive meaning of line integral with respect to x?
46808
How to draw circle tangents and removing the inner lines?
83301
Intuition behind directional derivative (geometrically)?
10309
Find the equation of the tangent line to the curve at the given point. $y = 1+2x-x^3$ at $(1,2)$
140062
What does the label on a tire mean?
66185
condition for curve on a sphere
142873
What does the function f: x ↦ y mean?
30088
What is the meaning of the third derivative of a function at a point
131621
Evaluating a product of tangents
123976
Slope of the tangent line, Calculus
12172
help me understand derivatives and their purpose
60811
How to find the equation of a line, tangent to a circle, that passes through a given external point
56151
Mental estimate for tangent of an angle (from $0$ to $90$ degrees)
15287
Proving that second derivative is perpendicular to curve
118663
Looking for a Simple Argument for "Integral Curve Starting at A Singular Point is Constant"