shili50.m

MATLAB实例编程一百个源程序,这里面有图象处理,数值计算等.

h0=figure('toolbar','none',...
    'position',[198 56 408 468],...
    'name','实例50');
h1=axes('parent',h0,...
    'position',[0.29 0.45 0.7 0.5],...
    'visible','on');
f=uicontrol('parent',h0,...
    'style','frame',...
    'position',[5 50 90 400]);
p1=uicontrol('parent',h0,...
    'style','pushbutton',...
    'position',[150 100 60 40],...
    'string','绘图',...
    'callback',[...
        'm=str2num(get(e1,''string''));,',...
        'n=str2num(get(e2,''string''));,',...
        'a=get(l1,''value'');,',...
        'x=m:0.1:n;',...
        'if a==1,',...
        'plot(x,sin(x)),',...
        'end,',...
        'if a==2,',...
        'plot(x,cos(x)),',...
        'end,',...
        'if a==3,',...
        'plot(x,exp(x)),',...
        'end']);
p2=uicontrol('parent',h0,...
    'style','pushbutton',...
    'position',[270 100 60 40],...
    'string','关闭',...
    'callback','close');
l1=uicontrol('parent',h0,...
    'style','listbox',...
    'position',[10 300 80 80],...
    'string','sin(x)|cos(x)|exp(x)',...
    'value',1,...
    'max',0.5,...
    'min',0);
f2=uicontrol('parent',h0,...
    'style','text',...
    'string','选择函数',...
    'fontsize',10,...
    'position',[10 380 80 20]);
r1=uicontrol('style','radio',...
    'string','grid on',...
    'value',0,...
    'position',[10 100 60 20],...
    'callback',[...
        'grid on,',...
        'set(r1,''value'',1);,',...
        'set(r2,''value'',0)']);
r2=uicontrol('style','radio',...
    'string','grid off',...
    'position',[10 80 60 20],...
    'value',1,...
    'callback',[...
        'grid off,',...
        'set(r2,''value'',1);,',...
        'set(r1,''value'',0)']);
e1=uicontrol('parent',h0,...
    'style','edit',...
    'string',0,...
    'position',[20 210 60 20],...
    'horizontalalignment','right');
e2=uicontrol('parent',h0,...
    'style','edit',...
    'string','3',...
    'position',[20 150 60 20],...
    'horizontalalignment','right');
t1=uicontrol('parent',h0,...
    'style','text',...
    'string','X from',...
    'fontsize',10,...
    'position',[20 230 60 20],...
    'horizontalalignment','center');
t2=uicontrol('parent',h0,...
    'style','text',...
    'string','To',...
    'fontsize',10,...
    'position',[20 170 60 20],...
    'horizontalalignment','center');