t=[0:1:20]x=[0:1:20]x1=392.0886/(1+exp(-t*0.2557).*(392.0886/3.9-1));总有错.我是要对比两条?Errorusing==>mrdivideMatrixdimensionsmustagree.

Question

t=[0:1:20] x=[0:1:20] x1=392.0886/(1+ exp(-t*0.2557).*(392.0886/3.9-1)); 总有错.我是要对比两条
? Error using ==> mrdivide
Matrix dimensions must agree.

Answer 1

x1=392.0886./(1+exp(-t*0.2557).*(392.0886/3.9-1)),第一个除号那里改成点除,即可.
>> x1=392.0886./(1+ exp(-t*0.2557).*(392.0886/3.9-1));
>> t=[0:1:20]; x=[0:1:20];
x1=392.0886./(1+ exp(-t*0.2557).*(392.0886/3.9-1))
x1 =
Columns 1 through 13
3.9000 5.0218 6.4608 8.3034 10.6570 13.6539 17.4551 22.2523 28.2684 35.7538 44.9762 56.2023 69.6681
Columns 14 through 21
85.5385 103.8596 124.5111 147.1721 171.3168 196.2487 221.1740 245.2997