What subjects of math would I even need to create the firm foundation needed if I am coming to math with close to zero knowledge.
Can anyone recommend good beginner learning sources.
Foundation to read this book or for a specific topic?
https://minireference.com/static/excerpts/noBSguide_v5_previ...
Here is also the concept map from the book for people to see what topics are covered in it: https://minireference.com/static/conceptmaps/math_and_physic...
Since you mentioned DSP, you might want to also check out this excerpt on Fourier transformations from the No Bullshit Guide to Linear Algebra: https://minireference.com/static/excerpts/fourier_transforma...