Question

Calculus,


What is the difference between the following notations?

dy/dx

*opposite triangle* notation

Answer 1

bicentric. i think right

Answer 2

example https://www.dropbox.com/s/gqdtj1d9x5eod00/Screenshot%202015-12-11%2011.42.24.png?dl=0

Answer 3

The simplest reason I heard it explained was that the del or nabla denoted the vector of partial derivatives of f while the regular delta (dy/dx) denoted the partial derivatives of f. So in other words, the upside down triangle notation refers to vector calculus while the right side up triangle refers to your common differential and integral calculus. Does that make any sense?

Answer 4

We might need an expert on this subject.

Answer 5

You might want to read up on Hessian and Laplacian matrices for this, @Christos

Answer 6

hmmm so the right side up triangle is the same as saying dy/dx ?

Answer 7

Yes delta is synonymous with dy/dx in calculus

Answer 8

Delta implies difference or change.

Answer 9

eg';So the time elapsed is 30 mins - ΔT = T2-T1