编写一个matlab脚本程序，实现输出字母的功能，具体要求如下： 根据Matlab的已学知识，写一个matlab函数m文件，具...
matlab\u4e2d\u7684\u811a\u672c\u7a0b\u5e8f\u600e\u4e48\u7f16\u5199\u5728matlab\u7684command window \u7684\u7a97\u53e3\u4e2d\uff0c\u8f93\u5165edit \u6587\u4ef6\u540d\uff08\u6587\u4ef6\u540d\u4e00\u822c\u4ee5\u5b57\u6bcd\u5f00\u5934\uff09\uff0c\u5982\u4e0b\uff1a
>> edit main
\u518d\u56de\u8f66\uff0c\u5c31\u4f1a\u5728\u5de6\u4fa7\u7684current folder\u91cc\u9762\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3amian\u7684.m\u6587\u4ef6\uff0c\u5f39\u51fa\u7f16\u8f91\u7a97\u53e3\uff0c\u5728\u7f16\u8f91\u7a97\u53e3\u8f93\u5165\u4f60\u8981\u7f16\u5199\u7684\u7a0b\u5e8f\u5373\u53ef\u3002
\u4e5f\u53ef\u4ee5\u76f4\u63a5\u70b9\u51fbmatlab\u5de6\u4e0a\u89d2\u7684\u65b0\u5efa\u6309\u94ae\uff0c\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6\uff0c\u5373New script\uff0c\u5728\u91cc\u9762\u7f16\u5199\u7a0b\u5e8f\uff0c\u5e76\u4fdd\u5b58\u5728\u4f60\u6307\u5b9a\u7684\u4f4d\u7f6e\uff0c\u8fd9\u65f6\u5019\u4e5f\u53ef\u4ee5\u4fee\u6539\u6587\u4ef6\u540d\u3002
MATLAB\u662f\u7f8e\u56fdMathWorks\u516c\u53f8\u51fa\u54c1\u7684\u5546\u4e1a\u6570\u5b66\u8f6f\u4ef6\uff0c\u7528\u4e8e\u7b97\u6cd5\u5f00\u53d1\u3001\u6570\u636e\u53ef\u89c6\u5316\u3001\u6570\u636e\u5206\u6790\u4ee5\u53ca\u6570\u503c\u8ba1\u7b97\u7684\u9ad8\u7ea7\u6280\u672f\u8ba1\u7b97\u8bed\u8a00\u548c\u4ea4\u4e92\u5f0f\u73af\u5883\uff0c\u4e3b\u8981\u5305\u62ecMATLAB\u548cSimulink\u4e24\u5927\u90e8\u5206\u3002
MATLAB\u662fmatrix&laboratory\u4e24\u4e2a\u8bcd\u7684\u7ec4\u5408\uff0c\u610f\u4e3a\u77e9\u9635\u5de5\u5382\uff08\u77e9\u9635\u5b9e\u9a8c\u5ba4\uff09\u3002\u662f\u7531\u7f8e\u56fdmathworks\u516c\u53f8\u53d1\u5e03\u7684\u4e3b\u8981\u9762\u5bf9\u79d1\u5b66\u8ba1\u7b97\u3001\u53ef\u89c6\u5316\u4ee5\u53ca\u4ea4\u4e92\u5f0f\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u9ad8\u79d1\u6280\u8ba1\u7b97\u73af\u5883\u3002
\u5b83\u5c06\u6570\u503c\u5206\u6790\u3001\u77e9\u9635\u8ba1\u7b97\u3001\u79d1\u5b66\u6570\u636e\u53ef\u89c6\u5316\u4ee5\u53ca\u975e\u7ebf\u6027\u52a8\u6001\u7cfb\u7edf\u7684\u5efa\u6a21\u548c\u4eff\u771f\u7b49\u8bf8\u591a\u5f3a\u5927\u529f\u80fd\u96c6\u6210\u5728\u4e00\u4e2a\u6613\u4e8e\u4f7f\u7528\u7684\u89c6\u7a97\u73af\u5883\u4e2d\uff0c\u4e3a\u79d1\u5b66\u7814\u7a76\u3001\u5de5\u7a0b\u8bbe\u8ba1\u4ee5\u53ca\u5fc5\u987b\u8fdb\u884c\u6709\u6548\u6570\u503c\u8ba1\u7b97\u7684\u4f17\u591a\u79d1\u5b66\u9886\u57df\u63d0\u4f9b\u4e86\u4e00\u79cd\u5168\u9762\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5e76\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u6446\u8131\u4e86\u4f20\u7edf\u975e\u4ea4\u4e92\u5f0f\u7a0b\u5e8f\u8bbe\u8ba1\u8bed\u8a00\uff08\u5982C\u3001Fortran\uff09\u7684\u7f16\u8f91\u6a21\u5f0f\uff0c\u4ee3\u8868\u4e86\u5f53\u4eca\u56fd\u9645\u79d1\u5b66\u8ba1\u7b97\u8f6f\u4ef6\u7684\u5148\u8fdb\u6c34\u5e73\u3002
MATLAB\u548cMathematica\u3001Maple\u5e76\u79f0\u4e3a\u4e09\u5927\u6570\u5b66\u8f6f\u4ef6\u3002\u5b83\u5728\u6570\u5b66\u7c7b\u79d1\u6280\u5e94\u7528\u8f6f\u4ef6\u4e2d\u5728\u6570\u503c\u8ba1\u7b97\u65b9\u9762\u9996\u5c48\u4e00\u6307\u3002MATLAB\u53ef\u4ee5\u8fdb\u884c\u77e9\u9635\u8fd0\u7b97\u3001\u7ed8\u5236\u51fd\u6570\u548c\u6570\u636e\u3001\u5b9e\u73b0\u7b97\u6cd5\u3001\u521b\u5efa\u7528\u6237\u754c\u9762\u3001\u8fde\u63a5\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u7684\u7a0b\u5e8f\u7b49\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u5de5\u7a0b\u8ba1\u7b97\u3001\u63a7\u5236\u8bbe\u8ba1\u3001\u4fe1\u53f7\u5904\u7406\u4e0e\u901a\u8baf\u3001\u56fe\u50cf\u5904\u7406\u3001\u4fe1\u53f7\u68c0\u6d4b\u3001\u91d1\u878d\u5efa\u6a21\u8bbe\u8ba1\u4e0e\u5206\u6790\u7b49\u9886\u57df\u3002
MATLAB\u7684\u57fa\u672c\u6570\u636e\u5355\u4f4d\u662f\u77e9\u9635\uff0c\u5b83\u7684\u6307\u4ee4\u8868\u8fbe\u5f0f\u4e0e\u6570\u5b66\u3001\u5de5\u7a0b\u4e2d\u5e38\u7528\u7684\u5f62\u5f0f\u5341\u5206\u76f8\u4f3c\uff0c\u6545\u7528MATLAB\u6765\u89e3\u7b97\u95ee\u9898\u8981\u6bd4\u7528C\uff0cFORTRAN\u7b49\u8bed\u8a00\u5b8c\u6210\u76f8\u540c\u7684\u4e8b\u60c5\u7b80\u6377\u5f97\u591a\uff0c\u5e76\u4e14MATLAB\u4e5f\u5438\u6536\u4e86\u50cfMaple\u7b49\u8f6f\u4ef6\u7684\u4f18\u70b9\uff0c\u4f7fMATLAB\u6210\u4e3a\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u5b66\u8f6f\u4ef6\u3002\u5728\u65b0\u7684\u7248\u672c\u4e2d\u4e5f\u52a0\u5165\u4e86\u5bf9C\uff0cFORTRAN\uff0cC++\uff0cJAVA\u7684\u652f\u6301\u3002
%matlab\u8054\u7cfb\u4e4b\u2014\u2014\u5229\u7528\u6700\u5c0f\u4e8c\u4e58\u6cd5\u62df\u5408\u51fd\u6570
clear;clc
%\u539f\u59cb\u79bb\u6563\u70b9\u8f93\u5165
x=[-1.0 -0.5 0.0 0.5 1.0 1.5 2.0];
y=[-4.447 -0.452 0.551 0.048 -0.447 0.549 4.552];
%\u539f\u59cb\u79bb\u6563\u70b9\u4f5c\u56fe
figure(1)
plot(x,y,'o','linewidth',2)
%\u62df\u5408\u9636\u6570\u5b9a\u4e49
n=3+1;
p=ones(n,length(x));
%\u6700\u5c0f\u4e8c\u4e58\u6cd5\u62df\u5408
p(1,1:length(x))=ones(1,length(x));
PP(1,n)=[1];
for h=2:n
p(h,:)=zeros(1,length(x));
a(h-1)=sum((x.*p(h-1,:)).*p(h-1,:))/sum(p(h-1,:).^2);
if h-2>0
a(h-2)=sum(p(h-1,:).*p(h-1,:))/sum(p(h-2,:).^2);
else
p(h,:)=p(h,:)+(x-a(h-1)).*p(h-1,:);
PP(h,n-1:n)=[1 -a(h-1)];
continue
end
p(h,:)=p(h,:)+(x-a(h-1)).*p(h-1,:)-a(h-2)*p(h-2,:);
PP(h,n-h+1:n)=conv([1 -a(h-1)],PP(h-1,n-h+2:n))-a(h-2)*[zeros(1,2) PP(h-2,n-h+3:n)];
end
%\u76f8\u5173\u8bc4\u4ef7\u53c2\u6570\u7684\u6c42\u53d6
A=zeros(n,n);
for h=1:n
A(h,h)=sum(p(h,:).^2);
end
B=ones(n,1);
for h=1:n
B(h)=p(h,:)*y';
end
for h=1:n
a(h)=B(h)/A(h,h);
end
p_val=0;
for h=1:n
p_val=p_val+a(h)*p(h,:);
end
P_a=zeros(1,n);
for h=1:n
P_a=P_a+a(h)*PP(h,:);
end
E=sum(y.^2)-y*p_val'
%\u62df\u5408\u51fd\u6570\u753b\u56fe\uff0c\u540c\u79bb\u6563\u70b9\u4e00\u8d77\u663e\u793a
x=linspace(x(1),x(length(x)),10*length(x));
P_val=polyval(P_a,x);
figure(1)
hold on
plot(x,P_val,'r','LineWidth',3)
legend('\u539f\u59cb\u79bb\u6563\u70b9','\u6700\u5c0f\u4e8c\u4e58\u6cd5\u62df\u5408\u66f2\u7ebf')
xlabel('X'),ylabel('Y')
title('\u6700\u5c0f\u4e8c\u4e58\u6cd5\u62df\u5408\u793a\u8303\u7ed3\u679c')
if c>='A' & c<='Z';
disp(setstr(abs(c)+1));
elseif c>='a'& c<='z';
disp(setstr(abs(c)-1));
else
disp(c);
end
请输入一个字符：E
F
迈特莱博
绛旓細c=input('璇疯緭鍏涓涓瀛楃锛','s');if c>='A' & c<='Z';disp(setstr(abs(c)+1));elseif c>='a'& c<='z';disp(setstr(abs(c)-1));else disp(c);end 璇疯緭鍏ヤ竴涓瓧绗︼細E F 杩堢壒鑾卞崥
绛旓細f=input('璇疯緭鍏ュ嚱鏁:');fun1=str2func(['@(x)',f]);x=input('璇疯緭鍏ヨ嚜鍙橀噺:');fprintf('鍑芥暟鍊间负:%d\n',fun1(x))>> fun 璇疯緭鍏ュ嚱鏁:'x^2+4'璇疯緭鍏ヨ嚜鍙橀噺:4 鍑芥暟鍊间负:20
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