Unable to convert expression into double array.

조회 수: 2 (최근 30일)
Andrea Gusmara
Andrea Gusmara 2020년 4월 25일
댓글: Andrea Gusmara 2020년 4월 25일
syms fi ;
syms theta;
syms psi;
rM=[cos(fi)*cos(theta)*cos(psi)-sin(fi)*sin(psi) -cos(fi)*cos(theta)*sin(psi)-sin(fi)*cos(psi) cos(fi)*sin(theta) ;
sin(fi)*cos(theta)*cos(psi)+cos(fi)*sin(psi) -sin(fi)*cos(theta)*sin(psi)+cos(fi)*cos(psi) sin(fi)*sin(theta);
-sin(theta)*cos(psi) sin(theta)*cos(psi) cos(theta)];
transition=[x y z]';
zeros=sym(zeros(1,3));
one=sym(ones(1));
hM=[rM transition ;
zeros one];
hM=double(hM);

채택된 답변

Radu Trimbitas
Radu Trimbitas 2020년 4월 25일
It is not clear what do you want. Your expressions are entirely symbolic. If you want to give later values to x,y,z, phi, etc try to convert hM to a MATLAB function with matlabFunction, eg
hMf=matlabFunction(hM);
and when you supply values for your symbolic variables you will obtain a double array
  댓글 수: 1
Andrea Gusmara
Andrea Gusmara 2020년 4월 25일
Yes I want to obtain a double expression from my symbolic hM. I have just tried to apply your advice and my program works correctly . I want to ask you another question , is it the only possible solution for update my simbolic expressions?. thanks for your help .

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Conversion Between Symbolic and Numeric에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by