From e1c5587623eacc26c6cd24242823c1115debfba0 Mon Sep 17 00:00:00 2001
From: bisnsh <bishsh2006@outlook.com>
Date: Mon, 20 Oct 2025 10:11:16 +0800
Subject: [PATCH] 45

---
 c5_5_11.m    |  6 ++++++
 c5_5_13.m    |  4 ++++
 c5_5_14.m    |  3 +++
 c5_5_15.m    |  6 ++++++
 c5_5_16.m    |  8 ++++++++
 c5_5_17.m    |  8 ++++++++
 c5_5_18.m    |  8 ++++++++
 c5_5_20.m    | 12 ++++++++++++
 c5_5_21.m    | 18 ++++++++++++++++++
 c5_5_22.m    | 13 +++++++++++++
 c5_5_23.m    | 14 ++++++++++++++
 c5_5_24.m    |  5 +++++
 c_5_5_12.m   |  6 ++++++
 p121.m       |  5 +++++
 plotxy11.m   |  5 +++++
 plotxy13.m   |  5 +++++
 plotxy14.m   |  7 +++++++
 plotxy15.m   |  8 ++++++++
 plotxy16.m   |  4 ++++
 plotxy20.m   |  3 +++
 plotxyz01.m  |  5 +++++
 plotxyz03.m  |  3 +++
 plotxyz05.m  |  3 +++
 plotxyz091.m |  4 ++++
 ployxyz011.m | 14 ++++++++++++++
 25 files changed, 177 insertions(+)
 create mode 100644 c5_5_11.m
 create mode 100644 c5_5_13.m
 create mode 100644 c5_5_14.m
 create mode 100644 c5_5_15.m
 create mode 100644 c5_5_16.m
 create mode 100644 c5_5_17.m
 create mode 100644 c5_5_18.m
 create mode 100644 c5_5_20.m
 create mode 100644 c5_5_21.m
 create mode 100644 c5_5_22.m
 create mode 100644 c5_5_23.m
 create mode 100644 c5_5_24.m
 create mode 100644 c_5_5_12.m
 create mode 100644 p121.m
 create mode 100644 plotxy11.m
 create mode 100644 plotxy13.m
 create mode 100644 plotxy14.m
 create mode 100644 plotxy15.m
 create mode 100644 plotxy16.m
 create mode 100644 plotxy20.m
 create mode 100644 plotxyz01.m
 create mode 100644 plotxyz03.m
 create mode 100644 plotxyz05.m
 create mode 100644 plotxyz091.m
 create mode 100644 ployxyz011.m

diff --git a/c5_5_11.m b/c5_5_11.m
new file mode 100644
index 0000000..99202f9
--- /dev/null
+++ b/c5_5_11.m
@@ -0,0 +1,6 @@
+x=-1:1;
+y=[1,2,3,4,5;1,2,1,2,1;5,4,3,2,1];
+subplot(1,2,1);bar(x,y,'grouped');
+title('Grouped');axis([-3,3,0,6]);
+subplot(1,2,2);barh(x,y,'stacked');
+title('Stack');
\ No newline at end of file
diff --git a/c5_5_13.m b/c5_5_13.m
new file mode 100644
index 0000000..8056724
--- /dev/null
+++ b/c5_5_13.m
@@ -0,0 +1,4 @@
+y=randn(500,1);
+theta=y*pi;
+rose(theta);
+title('再极坐标下的直方图');
\ No newline at end of file
diff --git a/c5_5_14.m b/c5_5_14.m
new file mode 100644
index 0000000..3df4054
--- /dev/null
+++ b/c5_5_14.m
@@ -0,0 +1,3 @@
+pie([7,17,23,19,5],[0,0,0,0,1]);
+title('饼图');
+legend('优秀','良好','中等','及格','不及格');
\ No newline at end of file
diff --git a/c5_5_15.m b/c5_5_15.m
new file mode 100644
index 0000000..445d21d
--- /dev/null
+++ b/c5_5_15.m
@@ -0,0 +1,6 @@
+t=0:2*pi/8:2*pi;
+t=[t,t(1)];
+x=sin(t);
+y=cos(t);
+fill(x,y,'r');
+axis equal;axis([-1.5,1.5,-1.5,1.6])
\ No newline at end of file
diff --git a/c5_5_16.m b/c5_5_16.m
new file mode 100644
index 0000000..f1abbb3
--- /dev/null
+++ b/c5_5_16.m
@@ -0,0 +1,8 @@
+x=0:0.35:7;
+y=2*exp(-0.5*x);
+subplot(1,3,1);scatter(x,y,'green');
+title('scatter(x,y,''green'')');axis([0,7,0,2]);
+subplot(1,3,2);stairs(x,y,'b');
+title('stairs(x,y,''b'')');axis([0,7,0,2]);
+subplot(1,3,3);stem(x,y,'k');
+title('stem(x,y,''k'')');axis([0,7,0,2]);
\ No newline at end of file
diff --git a/c5_5_17.m b/c5_5_17.m
new file mode 100644
index 0000000..8d3ce1a
--- /dev/null
+++ b/c5_5_17.m
@@ -0,0 +1,8 @@
+x=-pi:pi/8:pi;
+y=sin(x);
+subplot(2,2,1);compass(x,y);
+title('罗盘图');
+subplot(2,2,2);feather(x,y);
+title('羽毛图');
+subplot(2,1,2);quiver(x,y);
+title('箭头图');
\ No newline at end of file
diff --git a/c5_5_18.m b/c5_5_18.m
new file mode 100644
index 0000000..dea0a5b
--- /dev/null
+++ b/c5_5_18.m
@@ -0,0 +1,8 @@
+t=0:pi/50:2*pi;
+x=8*cos(t);
+y=4*sqrt(2)*sin(t);
+z=-4*sqrt(2)*sin(t);
+plot3(x,y,z,'p');
+title('Line in 3-D Space');
+text(0,0,0,'origin');
+xlabel('X'),ylabel('Y'),zlabel('Z');grid;
\ No newline at end of file
diff --git a/c5_5_20.m b/c5_5_20.m
new file mode 100644
index 0000000..f83d0f3
--- /dev/null
+++ b/c5_5_20.m
@@ -0,0 +1,12 @@
+x=0:0.1:2*pi;
+[x,y]=meshgrid(x);
+z=sin(y).*cos(x);
+subplot(2,2,1);mesh(x,y,z);
+xlabel('x-axis'),ylabel('y-axis'),zlabel('z-axis');
+title('mesh');
+subplot(2,2,2);surf(x,y,z);
+xlabel('x-axis'),ylabel('y-axis'),zlabel('z-axis');
+title('surf');
+subplot(2,1,2);plot3(x,y,z);
+xlabel('x-axis'),ylabel('y-axis'),zlabel('z-axis');
+title('plot3');
diff --git a/c5_5_21.m b/c5_5_21.m
new file mode 100644
index 0000000..00d0b86
--- /dev/null
+++ b/c5_5_21.m
@@ -0,0 +1,18 @@
+m=30;
+z=1.2*(0:m)/m;
+r=ones(size(z));
+theta=(0:m)/m*pi*2;
+x1=r'*cos(theta);
+y1=r'*sin(theta);
+z1=z'*ones(1,m+1);
+x=(-m:2:m)/m;
+x2=x'*ones(1,m+1);
+y2=r'*cos(theta);
+z2=r'*sin(theta);
+surf(x1,y1,z1);
+axis equal,axis off;
+hold on;
+surf(x2,y2,z2);
+axis equal,axis off;
+title('两个圆柱体相交图形');
+hold off;
\ No newline at end of file
diff --git a/c5_5_22.m b/c5_5_22.m
new file mode 100644
index 0000000..64ccf79
--- /dev/null
+++ b/c5_5_22.m
@@ -0,0 +1,13 @@
+[x,y] = meshgrid(-10:0.2:10);
+z1 = (x.^2-2*y.^2) + eps;
+a=input('a=?');
+z2=a*ones(size(x));
+subplot(1,2,1);
+mesh(x,y,z1);hold on;mesh(x,y,z2);
+v=[-10,10,-10,10,-100,100];axis(v);grid;
+hold off
+r0=abs(z1-z2)<=1;
+xx=r0.*x;yy=r0;zz=r0.*z2;
+subplot(1,2,2);
+plot3(xx(r0~=0),yy(r0~=0),zz(r0~=0),'*');
+axis(v);grid;
\ No newline at end of file
diff --git a/c5_5_23.m b/c5_5_23.m
new file mode 100644
index 0000000..f84d339
--- /dev/null
+++ b/c5_5_23.m
@@ -0,0 +1,14 @@
+[x,y]=meshgrid(-8:0.5:8);
+z=sin(sqrt(x.^2+y.^2));
+subplot(2,2,1);
+meshc(x,y,z);
+title('meshc(x,y,z)');
+subplot(2,2,2);
+meshz(x,y,z);
+title('meshz(x,y,z)');
+subplot(2,2,3);
+surfc(x,y,z);
+title('surfc(x,y,z)');
+subplot(2,2,4);
+surfl(x,y,z);
+title('surfl(x,y,z)');
\ No newline at end of file
diff --git a/c5_5_24.m b/c5_5_24.m
new file mode 100644
index 0000000..8540bd9
--- /dev/null
+++ b/c5_5_24.m
@@ -0,0 +1,5 @@
+t=0:pi/20:2*pi;
+[x,y,z]=cylinder(2+sin(t),30);
+subplot(1,3,1);surf(x,y,z);
+[x,y,z]=sphere;
+subplot(1,3,1);surf(x,y,z);
\ No newline at end of file
diff --git a/c_5_5_12.m b/c_5_5_12.m
new file mode 100644
index 0000000..d641a85
--- /dev/null
+++ b/c_5_5_12.m
@@ -0,0 +1,6 @@
+y=randn(500,1);
+subplot(1,2,1);
+hist(y);title('高斯分布直方图');
+x=-4:0.1:4;
+subplot(1,2,2)
+hist(y,x);title('指定范围的高斯分布直方图');
\ No newline at end of file
diff --git a/p121.m b/p121.m
new file mode 100644
index 0000000..09e7d2a
--- /dev/null
+++ b/p121.m
@@ -0,0 +1,5 @@
+x=1:2:9;
+y=[1,3,5,2,6;2,4,5,6,2;5,4,7,2,2]';
+area(x,y);
+grid on;
+title('面积统计图');
diff --git a/plotxy11.m b/plotxy11.m
new file mode 100644
index 0000000..9f73c55
--- /dev/null
+++ b/plotxy11.m
@@ -0,0 +1,5 @@
+x = 0:0.1:4*pi;
+plot(x,sin(x)+sin(3*x));
+set(gca,'ytick',[-1,-0.3,0.1,1]);
+set(gca,'yticklabel',{'极小','临界值','崩溃值','极大'});
+grid on;
\ No newline at end of file
diff --git a/plotxy13.m b/plotxy13.m
new file mode 100644
index 0000000..aeaee33
--- /dev/null
+++ b/plotxy13.m
@@ -0,0 +1,5 @@
+x=0:0.1:4*pi;
+subplot(2,2,1);plot(x,sin(x));
+subplot(2,2,2);plot(x,cos(x));
+subplot(2,2,3);plot(x,sin(x).*exp(-x/5));
+subplot(2,2,4);plot(x,x.^2);
\ No newline at end of file
diff --git a/plotxy14.m b/plotxy14.m
new file mode 100644
index 0000000..2a4c065
--- /dev/null
+++ b/plotxy14.m
@@ -0,0 +1,7 @@
+t=0:0.1:2*pi;
+x=3*cos(t);
+y=sin(t);
+subplot(2,2,1);plot(x,y);axis normal
+subplot(2,2,2);plot(x,y);axis square
+subplot(2,2,3);plot(x,y);axis equal
+subplot(2,2,4);plot(x,y);axis equal tight
\ No newline at end of file
diff --git a/plotxy15.m b/plotxy15.m
new file mode 100644
index 0000000..5c8b1c1
--- /dev/null
+++ b/plotxy15.m
@@ -0,0 +1,8 @@
+x=0:0.1:2*pi;
+y1=sin(x);
+y2=exp(-x);
+plot(x,y1,'--*',x,y2,':o');
+xlabel('t = 0 to 2\pi');
+ylabel('values of sin(t) and e^{-x}');
+title('Function Plots of sin(t) and e^{x}');
+legend('sin(t)','e^{-x}');
\ No newline at end of file
diff --git a/plotxy16.m b/plotxy16.m
new file mode 100644
index 0000000..42834a0
--- /dev/null
+++ b/plotxy16.m
@@ -0,0 +1,4 @@
+x=0:0.1:2*pi;
+plot(x,sin(x),x,cos(x));
+text(pi/4,sin(pi/4),'\leftarrow sin(q\pi/4)=0.707');
+text(5*pi/4,cos(5*pi/4),'cos(5\pi/4) = -0.707 \rightarrow','HorizontalAlignment','right');
\ No newline at end of file
diff --git a/plotxy20.m b/plotxy20.m
new file mode 100644
index 0000000..0f7eaa8
--- /dev/null
+++ b/plotxy20.m
@@ -0,0 +1,3 @@
+x=randn(10000,1);
+hist(x,25);
+set(findobj(gca,'type','patch'),'edgecolor','w');
\ No newline at end of file
diff --git a/plotxyz01.m b/plotxyz01.m
new file mode 100644
index 0000000..6aa3b4a
--- /dev/null
+++ b/plotxyz01.m
@@ -0,0 +1,5 @@
+x=linspace(-2,2,25);
+y=linspace(-2,2,25);
+[xx,yy]=meshgrid(x,y);
+zz=xx.*exp(-xx.^2-yy.^2);
+surf(xx,yy,zz);
\ No newline at end of file
diff --git a/plotxyz03.m b/plotxyz03.m
new file mode 100644
index 0000000..7b74298
--- /dev/null
+++ b/plotxyz03.m
@@ -0,0 +1,3 @@
+[x,y,z]=peaks;
+meshz(x,y,z);
+axis tight
\ No newline at end of file
diff --git a/plotxyz05.m b/plotxyz05.m
new file mode 100644
index 0000000..d3727ee
--- /dev/null
+++ b/plotxyz05.m
@@ -0,0 +1,3 @@
+[x,y,z]=peaks;
+meshc(x,y,z);
+axis tight
\ No newline at end of file
diff --git a/plotxyz091.m b/plotxyz091.m
new file mode 100644
index 0000000..6499d87
--- /dev/null
+++ b/plotxyz091.m
@@ -0,0 +1,4 @@
+subplot(2,2,1);ezmesh('sin(x)/x*sin(y)/y');
+subplot(2,2,2);ezsurf('sin(x*y)/(x*y)');
+subplot(2,2,3);ezmeshc('sin(x)/x*sin(y)/y');
+subplot(2,2,4);ezsurfc('sin(x*y)/(x*y)');
\ No newline at end of file
diff --git a/ployxyz011.m b/ployxyz011.m
new file mode 100644
index 0000000..f658c98
--- /dev/null
+++ b/ployxyz011.m
@@ -0,0 +1,14 @@
+x = 3 : 6;
+y = 5 : 9;
+[xx,yy]=meshgrid(x,y);
+zz=xx.*yy;
+subplot(2,2,1);mesh(xx);
+title('xx');axis tight
+subplot(2,2,2);mesh(yy);
+title('yy');axis tight
+subplot(2,2,3);mesh(xx,yy,zz);
+title('zz对xx及yy作图');axis tight
+subplot(2,2,4);mesh(zz);
+title('zz');axis tight
+
+colormap(zeros(1,3));
\ No newline at end of file