My end goal is to visualize how the vector plot changes in real time by manipulating one of the input variables. I can change the -7 input value manually and press Enter to get a different vector plot. However, I cannot seem to get the same results using the Manipulate[] function - see additional examples in the attached notebook below.
Thanks,Mitch Sandlin
You've misplaced the brackets. In the first plot you used
{{6/10, 1/2}, {- 7, 6/5}} . {x, y}
but in the later ones you used
{{6/10, 1/2}, {-pred, 6/5} . {x, y}}
