Some articles on signed curvature:
... The sign of the signed curvature k indicates the direction in which the unit tangent vector rotates as a function of the parameter along the curve ... The signed curvature depends on the particular parametrization chosen for a curve ... More precisely, the signed curvature depends only on the choice of orientation of an immersed curve ...
Famous quotes containing the word signed:
“I remember a very important lesson that my father gave me when I was twelve or thirteen. He said, You know, today I welded a perfect seam and I signed my name to it. And I said, But, Daddy, no ones going to see it! And he said, Yeah, but I know its there. So when I was working in kitchens, I did good work.”
—Toni Morrison (b. 1931)