2차원 그래프

>> x=[-2:0.3:4];
y=3.5.^(-0.5*x).*cos(6*x);
plot(x, y)

>> x=[-2:0.01:4];
y=3.5.^(-0.5*x).*cos(6*x);
plot(x, y)

>> fplot( 'x^2+4*sin(2*x)-1', [-3,3] )

>> func='sin(t^2)/t^2' ; fplot( func, [-5, 5] )

>> x=[-2:0.01:4];
y=3*x.^3-26*x+6;
yd=9*x.^2 - 26;
ydd = 18*x;
plot( x, y, '-b', x, yd, '--r', x, ydd, ':k' )

>> x=[-2:0.01:4];
y=3*x.^3-26*x+6;
yd=9*x.^2 - 26;
ydd = 18*x;
plot(x, y, 'LineStyle', '-', 'color', 'b')
line(x, yd, 'LineStyle', '--', 'color', 'r')
line(x, ydd, 'LineStyle', ':', 'color', 'k')

>> % 그래프 그리기
x = 0: 0.02: pi/2;
plot(x, tan(x), '-ro')
axis([0 pi/2 0 5])
% 최대값에 맞추어 설정된 좌표축의 재설정
axis([0 pi/2 0 5])

>> x=[1988:1994];
y=[8 12 20 22 18 24 27];
bar(x, y, 'r') % x 위치에 y 크기
xlabel('Year')
ylabel('Sales (Millions)')

>> x=[1988:1994];
y=[8 12 20 22 18 24 27];
barh(x, y) % x 위치에 y 크기
xlabel('Sales (Millions)')
ylabel('Year')

>> x=[1988:1994];
y=[8 12 20 22 18 24 27];
stairs(x, y)
xlabel('Year')
ylabel('Sales (Millions)')

>> x=[1988:1994];
y=[8 12 20 22 18 24 27];
stem(x, y)
xlabel('Sales (Millions)')
ylabel('Year')

>> grd=[11 18 26 9 5];
pie(grd)
title('Class Grades')

>> x = -2:0.5:2;
n=length(x)
y=randn(1000,1); hist(y, x)

n =

     9

>> x = -4:0.1:4;
n=length(x)
y=randn(10000, 1);
hist(y,x)

n =

    81

>> x = 0:0.1:1;
length(x)
y=rand(5000,1);
hist(y,x)
rand(3)

ans =

    11


ans =

    0.9077    0.9439    0.3174
    0.4637    0.0956    0.9448
    0.4008    0.5587    0.6189

>> t=linspace(0, 2*pi, 200);
r=3*cos(0.5*t).^2 + t;
polar(t, r)

>> t = 0:.01:2*pi;
polar( t, sin(2*t).*cos(2*t), '--r' )