# Curvature of a parametric curve

- 11/2020 - #Definition

## (Draft / notes)

# Definition: Laplacian Matrix for triangle meshes

cheat sheet. - 05/2019 - #Definition

Definition of the Laplacian matrix and Laplace operator on a triangular mesh. I give an in depth explanation here.

# Normal to an implicit surface

How to compute the normal of a distance field (implicit surface) - 03/2018 - #Definition

# Gradient rules

Multivariate calculus - differentiate expressions with nabla/gradient operator. - 01/2015 - #Definition

Cheat sheet to differentiate expressions with the \( \nabla \) operator to compute gradients of various functions.

# Contour lines

How to read an interpret iso-lines / level curves. - 12/2013 - #Definition

## Introduction

To represent a 2D function \( z = f(x,y) \) one can draw a 3D surface. The higher the \(z\) value the higher the point on the surface (see above).

# Curvature of a triangle mesh, definition and computation.

How to compute the curvature for a triangular 3d mesh - 05/2013 - #Definition

Defining and giving the formula to compute the curvature over a triangle mesh at some vertices.

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