Directional Derivative

05152015, 08:26 PM
(This post was last modified: 05152015 08:28 PM by salvomic.)
Post: #1




Directional Derivative
hi all,
my proposal for a function to calculate directional derivative ( \( \bigtriangledown f \cdot \overrightarrow{v} \) ). It's a CAS program. Use: derivdir(f,v), where f is a function and v a vector. I would like to thank Han for his hints in making this program. Enjoy! Salvo Code:
∫aL√0mic (IT9CLU) :: HP Prime 50g 41CX 71b 42s 39s 35s 12C 15C  DM42, DM41X  WP34s Prime Soft. Lib 

05112019, 11:21 AM
Post: #2




RE: Directional Derivative
Nice program.
It works. Curious that DOT product should be written in lowercase letters. Also "local" seems to be necessary in lowercase. Thanks 

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