Advice
Rates & FAQS
Maths/Physics Notes
Our Blog
Contact Us
Online Tests

Call Us 07766496223

Search

Home
GCSE Maths Notes
GCSE Physics Notes
IGCSE Maths Notes
IGCSE Physics Notes
O Level Maths Notes
O Level Additional Maths
O Level Physics Notes
IB Maths Notes
IB Physics Notes
A Level Maths Notes
A Level Physics Notes
University Maths Notes
- Abstract Algebra and Group Theory
- Advanced Calculus
- Analysis
- Complex Analysis
- Elementary Calculus
- Game Theory
- Geometry
- Logic
- Matrices and Linear Algebra
- Metric Spaces
- Non Euclidean Geometry
- Number Theory
- Numerical Methods
- Probability and Statistics
- Set Theory
- Stochastic Processes
- Tensors
- Topology
- Vector Calculus
University Physics Notes
Tools and Resources
Maths Tuition
Physics Tuition
Tutor Profiles
Tuition Enquiry
Tutor Registration
Open University
Newsletter
My Favourite Education Links
Privacy Policy
About Us

Similar Articles

Vectors and Scalars
Thinking, Braking and Stopping Distances
Practical Vectors
SI Units
Distance Time Graphs

Log In or Register to Comment Without Captcha

Username

Password

Remember Me

Forgot your password?
Forgot your username?
Create an account

Latest Blog Posts

Isn’t it lovely
Car scan of broken leg

Home
University Maths Notes
Vector Calculus
Proof That Grad of the Distance Function is a Unit Vector

Proof That Grad of the Distance Function is a Unit Vector

Theorem

Letandbe two points.

The distance betweenandisandis a unit vector

Proof

Previous article: Proof That Grad of a Function Defining a Surface is Perpendicular to the Surface Prev Next article: Proof That 1 - Forms are Semi - Distributive Next