I am just wondering if we will learn Perlin noise?
Lavender
I think the picture here is great! It really gives me an intuitive sense that divergence is the "sinkedness" of a vector field, whereas curl is the "spinningness" of a vector field!
keliu
Can someone explain why the rotation from X^\prep to X is (intuitively) counter-clockwise?
supernova
So what the meaning of the sign of divergence and curl?
justaddwater
I thought that the pictures really help me visualize intuitively what divergence and curl is.
Gundam
@keliu For field X=(P, Q) in (x, y) plane, X^\prep=(-Q, P), div(X)=Px+Qy=Px-(-Q)y=curl(X^\prep)
I am just wondering if we will learn Perlin noise?
I think the picture here is great! It really gives me an intuitive sense that divergence is the "sinkedness" of a vector field, whereas curl is the "spinningness" of a vector field!
Can someone explain why the rotation from X^\prep to X is (intuitively) counter-clockwise?
So what the meaning of the sign of divergence and curl?
I thought that the pictures really help me visualize intuitively what divergence and curl is.
@keliu For field X=(P, Q) in (x, y) plane, X^\prep=(-Q, P), div(X)=Px+Qy=Px-(-Q)y=curl(X^\prep)