Animation of consecutive plots

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Jane
Jane on 20 Apr 2014
Edited: Walter Roberson on 20 Apr 2014
Hi! I'm having trouble with this problem:
Animate the following HW problem by displaying a new plot consecutively for the following values of
d= 130.51 : 0.005 : 180.92. Display each plot for 0.005 seconds before the next one is displayed. Make axis equal but do not display the axis. Display the value of d in the title. Each plot should have 1000 seeds. Use a different color for each plot.
This is what I've come up with so far, but I'm totally stuck:
n=1:1000;
d = 130.51;
th = pi*d.*n./180;
r = sqrt(n);
figure
axis equal
plot(r.*cos(th), r.*sin(th), 'o' )
hold on
x=1:1082;
d= d+ 0.005*x;
Problem 7.4 (already completed): The arrangement of seeds in a sunflower head follows a fixed mathematical pattern. The nth seed is at position r= sqrt(n), with angular coordinate pi*d*n/180 radians, where d is the constant angle of divergence in degrees between any two successive seeds, i.e. between the nth and (n+1)th seeds. A perfect sunflower head is generated by d=137.51. Write a program to plot the seeds; use a circle (o) for each seed.
My program for problem 7.4:
n=1:1000;
d = 137.51;
th = pi*d*n/180;
r = sqrt(n);
plot(r.*cos(th), r.*sin(th), ’o’)
Help would be greatly appreciated! I can't get the inner matrix dimensions to agree and then plot one on top of each other.
THANK YOU

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