Question

Help//

Answer 1

@ganeshie8

Answer 2

.

Answer 3

.

Answer 4

This is an 0-8-4. If you know what I mean. Hehehe

Answer 5

Oh you.. XD

Answer 6

what is it by the way? @Yttrium?

Answer 7

let me tag @Kainui

Answer 8

I'm not sure what it means to take gradient of a vector function...
is this from tensor analysis ?

Answer 9

no vector calculus.

Answer 10

\[*=\times \]

Answer 11

cross product

Answer 12

and the . is dot product?

Answer 13

@jango_IN_DTOWN Before we start with anything, are you familiar with what all the symbols in the equation mean?

Answer 14

how do you define gradient of a vector ?
I only dealt with taking gradients of scalar functions... never worked with gradients of vector functions..

Answer 15

We're specifically looking at: https://en.wikipedia.org/wiki/Vector_calculus_identities#Vector_dot_product

Where they say "As a special case, when A = B,"

Answer 16

hi @Kainui which one?

Answer 17

https://upload.wikimedia.org/math/7/1/6/7167818e448d0cc60dfee192dc31697a.png

Answer 18

How will we prove it

Answer 19

Do you know what this means? \[(A \cdot \nabla) A\]

Answer 20

Let A=ai+bj+ck
(A. ▽)A=