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With example express gradient, divergence and curl in both cylindrical and spherical coordnates With example express gradient, divergence and curl in both cylindrical and spherical coordnates
Gradient is another word for "slope". The higher the gradient of a graph at a point, the steeper the line is at that point. A negative gradient means that the line slopes downwards. The video below is a tutorial on Gradients. Finding the gradient of a straight-line graph.
The polar angle is denoted by θ: it is the angle between the z-axis and the radial vector connecting the origin to the point in question. The azimuthal angle is denoted by φ: it is the angle between the x-axis and the projection of the radial vector onto the xy-plane.
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