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1、第一题x=-3:0.1:3;%x取-3到3y=1:0.1:5;%y取1到5[x,y]=meshgrid(x,y);%创建网格数据a=3.*(1-x).*exp(-x.^2-(y+1).^2);b=10.*(x./5-x.^3-y.^5).*exp(-x.^2-y.^2);c=(1./3).*exp(-(x+1).^2-y.^2);z=a-b-c;%输入函数式subplot(2,2,1);mesh(x,y,z);%画出立体网状图hiddenoff%显示被遮盖的网线axistighttitle('图形的隐含部分表现出来')subplot(2,2,2)mesh(x,y,z)shadin
2、gflattitle('带阴影的三维图形')z=peaks(x,y);%计算函数值subplot(2,2,3);meshc(x,y,z);%绘制带等高线的三维图形title('带等高线的三维图形')subplot(2,2,4)contour3(x,y,z,20);%绘制三维图形的等高线xlabel('X-axis'),ylabel('Y-axis'),zlabel('Z-axis')title(‘三维图形的等高线’)第二题sum=0;fori=0:63,part=1;forj=1:i,part=2.^j;endfprintf('part(%d)=%d.',i,part);su
3、m=sum+part;endsumsum=0;i=0;k=0;whilei<63i=i+1;k=2.^i;sum=sum+kend>>part(0)=1.part(1)=2.part(2)=4.part(3)=8.part(4)=16.part(5)=32.part(6)=64.part(7)=128.part(8)=256.part(9)=512.part(10)=1024.part(11)=2048.part(12)=4096.part(13)=8192.part(14)=16384.part(15)=32768.part(16)=65536.part(17)=131072.
4、part(18)=262144.part(19)=524288.part(20)=1048576.part(21)=2097152.part(22)=4194304.part(23)=8388608.part(24)=16777216.part(25)=33554432.part(26)=67108864.part(27)=134217728.part(28)=268435456.part(29)=536870912.part(30)=1073741824.part(31)=2.147484e+009.part(32)=4.294967e+009.part(33)=8.58993
5、5e+009.part(34)=1.717987e+010.part(35)=3.435974e+010.part(36)=6.871948e+010.part(37)=1.374390e+011.part(38)=2.748779e+011.part(39)=5.497558e+011.part(40)=1.099512e+012.part(41)=2.199023e+012.part(42)=4.398047e+012.part(43)=8.796093e+012.part(44)=1.759219e+013.part(45)=3.518437e+013.part(46)=7
6、.036874e+013.part(47)=1.407375e+014.part(48)=2.814750e+014.part(49)=5.629500e+014.part(50)=1.125900e+015.part(51)=2.251800e+015.part(52)=4.503600e+015.part(53)=9.007199e+015.part(54)=1.801440e+016.part(55)=3.602880e+016.part(56)=7.205759e+016.part(57)=1.441152e+017.part(58)=2.882304e+017.part
7、(59)=5.764608e+017.part(60)=1.152922e+018.part(61)=2.305843e+018.part(62)=4.611686e+018.part(63)=9.223372e+018.sum=1.8447e+019sum=2sum=6sum=14sum=30sum=62sum=126sum=254sum=510sum=1022sum=2046sum=4094sum=8190sum=16382sum=32766sum=65534sum=1310
