I want to know which software was used to create vector calculus graph

[Alexanddros81]

TL;DR Summary

I want to know which software was used to create vector calculus graphs. The book is "Vector Calculus" by Marsden and Tromba 6th edition.

Hi.
I have the Marsden an Tromba vector calculus book 6th edition.
I was wondering which software was used to create the books graphs.
I attach two graphs as an example.
Thanks

 

[fresh_42]

I don't know the answer to your question, but
https://mathegrafix-de.translate.goog/?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en
seems to come close. However, I only use the freeware version, so I don't know how pro the professional license is.

 

[jedishrfu]

Perhaps the end covers of the book will provide the answer. They sometimes list credits, fonts used and software.

Some authors may use Matlab or Mathematica too.