求很简单的Matlab代码 求一个简单的matlab程序代码，只要符合要求即可
MATLAB \u6c42\u770b\u7b80\u5355\u4ee3\u7801\u8bd5\u8bd5\u8fd9\u6837
j=1\uff1b
for i=1:length(c)
d=double(c{i});
if d>96
if d<123
C{j}=c{i};
j=j+1;
end
end
end
x=[1 3 5 -1]';
n=length(x);
for i=1:n;
if x(i)>2
y(i)=fun1(x(i));
else
y(i)=fun2(x(i));
end
end
y
\u8fd9\u662f\u4e3b\u7a0b\u5e8f\u3002\u4e0b\u9762\u4e24\u4e2a\u5206\u522b\u4fdd\u5b58\u6210M\u6587\u4ef6
function y = fun1(x)
y=x*x+1;
end
function y = fun2(x)
y=x-1;
end
加一个逻辑判断。怎么看到好多次这个问题。
x = 0:0.01:2
y = (x>=0&x<=1).*x + (x<=2&x>1).*(1-x)
plot(x,y)
绛旓細I=imread('xian.bmp');J=double(I);J=-J+(256-1);%鍥惧儚鍙嶈浆绾挎у彉鎹=uint8(J);subplot(1,2,1),imshow(I);subplot(1,2,2),imshow(H);4.鐏板害绾挎у彉鎹ATLAB 绋嬪簭瀹炵幇濡備笅:I=imread('xian.bmp');subplot(2,2,1),imshow(I);title('鍘熷鍥惧儚');axis([50,250,50,200]);axis on;%鏄剧ず鍧愭爣...
绛旓細绗竴棰 ezplot3('2*cos(t)','2*sin(t)','0.5*t')绗簩棰 [x,y]=meshgrid(-pi/2:pi/50:pi/2);z=sin(pi*sqrt(x.^2+y.^2));surf(x,y,z)绗笁棰 u=[0:pi/20:2*pi];v=u;x=(1+cos(u)).*cos(v);y=(1+cos(u)).*sin(v);z=ones(41,1)*sin(u);surf(x,...
绛旓細瀹炵幇浠ｇ爜锛t=linspace(0,30,100);y=1-2*exp(-t).*sin(t);plot(t,y,'r-');hold on;title('Decaying-oscillating Exponential');xlabel('Time');ylabel('Amplitude');
绛旓細sum=sum+1/i^2 i=i+1;end sum
绛旓細杩欎釜姣旇緝绠鍗 鍏跺疄灏辨槸鍩轰簬matlab鐨勮闊充俊鍙锋护娉㈠鐞 杩欐槸鎴戝垰鍋氱殑锛岃繍琛屾槸姝ｇ‘鐨勶紒ly鏄闊充俊鍙风殑鍚嶅瓧锛屾埅鍥捐嚜宸辫繍琛屽氨浼氭湁锛佸師璇煶淇″彿绋嬪簭 figure(1);[y,fs,nbits]=wavread ('ly');sound(y,fs,nbits); %鍥炴斁璇煶淇″彿 n = length (y) ; %姹傚嚭璇煶淇″彿鐨勯暱搴 Y=fft(y,n); %鍌呴噷...
绛旓細浠ｇ爜濡備笅锛堝悓鏃跺凡浣滀负闄勪欢涓婁紶锛夛細N = 1000000;M = 2*N;a = sparse(M+1, M+1);j = N + 1;k = N + 1;b = ceil(4*rand(1,N));% 缁樺浘鏄剧ず璁＄畻杩囩▼(涓烘彁楂樻晥鐜囷紝姣弉娆″惊鐜緭鍑轰竴涓偣)n = 500;v = zeros(1, fix(N/n)+1) * NaN;h = plot(1 : fix(N/n)+1, v, ...
绛旓細1銆佹病鐪嬫槑鐧介鎰 2銆佸懡浠や负x=0:0.1*pi:4*pi锛岃В閲婏細0琛ㄧず璧峰鍊硷紝0.1*pi琛ㄧず姝ラ暱锛4*pi琛ㄧず缁堟鍊硷紱鑻0.1*pi绌虹潃锛屽嵆鎸囦护涓簒=0:4*pi锛屽垯姝ラ暱榛樿涓1锛屼互0涓哄垵鍊硷紝x鐨勮寖鍥翠笉瓒呰繃4*pi锛屼緥濡倄=1:2.5锛屽垯x=[1 2]锛屾敞鎰弍i涓matlab閲岃〃绀合鐨勫父閲忋3銆亁=logspace(0,2,3)鐢熸垚x=...
绛旓細for i=1:5 N=i,wn=0.4,Fs=100;[num,den]=butter(N,wn);[H,W]=freqz(num,den);plot(W*Fs/(2*pi),abs(H));grid;hold on end Xlabel('棰戠巼/Hz');Ylabel('骞呭');
绛旓細浣犺繖涓棶棰樼殑閿欒鍘熷洜寰堢畝鍗锛氬洜涓轰綘鐨則鏄鏁ｇ殑锛屾墍浠ュ緱鍒扮殑姝ｄ綑寮﹀间篃鏄鏁ｇ殑锛岃繖鏍蜂粬浠殑涔樻硶杩愮畻涔熸槸鏁扮粍鐨勮繍绠楋紝杩欐牱涔樺彿鍓嶈鍔犱笂鍦嗙偣銆備笅闈㈡槸姝ｇ‘鐨勩倀=linspace(0,7);y=sin(t).*cos(t)-cos(3*t);y=sin(t).*cos(t)-cos(3*t);plot(x,y);xlabel('x');ylabel('y');grid 杩...
绛旓細1銆佷互鏈烘鑷傜殑鑲╄唨涓哄師鐐瑰缓绔嬪潗鏍囩郴锛寈杞村悜鍙筹紝y杞村悜涓娿2銆佹妸鏈烘鎵嬬殑浣嶇疆锛坸锛寉锛夊彉鎹㈠埌鏈烘鑷傚潗鏍囩郴涓3銆佸墿涓嬬殑锛屽氨鏄寜鐓у浘涓殑鍏紡璁＄畻瑙掑害浜嗐傚弬鑰浠ｇ爜 鏈烘鎵嬩綅缃畑 = [20 0 0 0 -15 -20];y = [15 7.5 15 23 15 30];% 鑷傞暱l1 = 15;l2 = 21;% 鑲╄唨鍧愭爣x0 = 5.4...
