i just want to know how to visualize in spherical and cylindrical coordinates im really having a rough time doing that
for example why is that when we keep r constant we get a sphere and θ constant a cone why???????????
i understand what you people said , but the problem is that when i keep r constant for instance , if i change the angle or z like i would have to change it like 1000000000 times to get the figure
i memorized them but still having problems like how in the world would i know that when i vary r ill get a cone can a person actually imagine that???