q257.m

电路与系统专业的matlab程序。有很多经典的实例。

%example for compass(极坐标)
%chapter 5

wdir = [45 90 90 45 360 335 360 270 335 270 335 335];
knots = [6 6 8 6 3 9 6 8 9 10 14 12];
rdir = wdir * pi/180;
[x,y] = pol2cart(rdir,knots);

compass(x,y)

desc = {'Wind Direction and Strength at',
'Logan Airport for ',
'Nov. 3 at 1800 through',
'Nov. 4 at 0600'};
text(-28,15,desc)