What is the six-phase problem-solving procedure for examining an information system and improving it?

For the graph signal shown in Figure 9.4, compute the gradient vectors at each node. What is the total variation of the graph signal?

What will be an ideal response?

One thing that tends to increase goodwill is

a. Making things like shipping costs and support phone numbers easy to find b. Bragging about your product c. Using a variety of different fonts