matlab 不规则数据输入输出答:SMH,30 C,1,10,H,4.1,D,SMH,80 C,2,10,H,2.9,D,SMH,-9999 C,3,10,H,2.1,D,SMQ,30 D,1,10,H,-9999, D, SMQ ,-9999 D,2,10,H,2.1,D,SMH,30 D,3,10,H,2.1,D,SMQ,30 你把这些数据传上来吧,数据来来自哪(文本,或表格)没这些谁知道怎么弄 ...
求MATLAB解方程编程答:思路:对等式两边求导,变成二阶微分方程,然后求解。clc;clear v=dsolve('D2v=25/8*v')v(0)=0 f1=subs(v,'t',0)-0;f2=subs(v,'t','t0')-80;[C1,C2]=solve(f1,f2,'C1,C2');v=subs(v)f3=int(v,0,'t0')-8;t0=solve(f3)t0=eval(t0)验算v(t0)=80 vt0=subs(v,'t'...
matlaB计算怎么做?谢谢答:t=[25,50,70,80,100];x=[5,7,9,10,11];y=3;for i = 1:size(x,1)z(i)=x(i)^4+y^4-x(i)^2-exp(x(i)+y)-2*x(i)*y-y^2 end plot(t,z)