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1、1%计算空心球体积r0=3;ri=2;volume=4*pi/3*(r0^3-ri^3)—————————————————————————————————————2%计算过氧化氢分子量H=15.9994;O=1.0079;H2O2=2*H+2*O—————————————————————————————————————3%计算字符创长度string=input('enterstring:','s');stringlength=length(string)—————————————————————————————————————%4输入实数，fpri
2、ntf输出这个变量，格式为两位小数num=input('enteranum:');fprintf('Thenumis%.2f',num)—————————————————————————————————————6fprintf('不指定宽度:%f',12345.6789)不指定宽度:12345.678900fprintf('10个字符宽度，4个小数位:%10.4f',12345.6789)10个字符宽度，4个小数位:12345.6789fprintf('10个字符宽度，2个小数位:%10.2f',12345.6789)10个字符宽度
3、，2个小数位:12345.68fprintf('6个字符宽度，4个小数位:%6.4f',12345.6789)6个字符宽度，4个小数位:12345.6789fprintf('2个字符宽度，4个小数位:%2.4f',12345.6789)2个字符宽度，4个小数位:12345.6789—————————————————————————————————————7fprintf('不指定宽度：%int16',12345)不指定宽度：12345nt16fprintf('不指定宽度：%d',12345)不指定宽度：12345fprintf('5
4、个字符宽度：%5d',12345)5个字符宽度：12345fprintf('8个字符宽度：%8d',12345)8个字符宽度：12345fprintf('3个字符宽度：%3d',12345)3个字符宽度：12345—————————————————————————————————————8x=12.34;y=4.56;fprintf('xis%.3f',x)xis12.340fprintf('xis%2.0f',x)xis12fprintf('yis%.1f',y)yis4.6fprintf('yis%-6.1f!',y
5、)yis4.6!—————————————————————————————————————9%计算矩形面积x=input('enterlength:');y=input('enterborad:');area=x*y;fprintf('areais%.2f',area)—————————————————————————————————————10string=input('whatisyourname?','s');fprintf('WoW,yournameis%s',string)—————————————————————————————
6、————————11string=input('enteryourstring:','s');fprintf('yourstringwas:''%s''',string)%输出单引号是应采用''格式—————————————————————————————————————12v=input('entertheflowinm^3/s:');fprintf('aflowrateof%.3fmeterspersecisequivalentto%.3ffeetpersec',v,v/0.028)—————————————————————————
7、————————————13incomeyear=input('enteryourincomeperyear:');fprintf('therangeoffoodexpenditureperyear%f~%ftherangeoffoodexpenditurepermounth%f~%f',incomeyear*0.08,incomeyear*0.1,incomeyear*0.08/12,incomeyear*0.1/12)—————————————————————————————————————14wight=input('wightofp
8、lant:');area=input('areaofwing:');fprintf('W/A:%fkg/m^2',wi
