what is the plot of persp what is persp plot and why does the graph not understand it persp plot examples what is the plot in persp what is the plot of persp what is the difference in the value between a plot and a persp plot plotting persp what plot is x y why is x a axis what is the plot in persp what is the plot x and y of persp which formula is used for the plot of persp what is perp plot what is the plotting axis for persp how to use persp plot in excel what values do persp plot take persp plot example which of the following values are the values of the matrix? what is persp plot x = 1 for persp plot and y = 2 for plot