How to store symbolic matrix in Octave?
0
In the code below I try to store the 8 symbolic matrix in MatRot:
MatRot = zeros(4,4,8);
pkg load symbolic
theta = sym('theta',[1 8]);
d = sym('d',[1 8]);
alpha = sym('alpha',[1 8]);
a = sym ('a',[1 8]);
for i=1:8
MatRot(:,:,i) = [[cos(theta(1,i)), -cos(alpha(1,i))*sin(theta(1,i)), sin(alpha(1,i))*sin(theta(1,i)), a(1,i)*cos(theta(1,i))];
[sin(theta(1,i)), cos(alpha(1,i))*cos(theta(1,i)), -sin(alpha(1,i))*cos(theta(1,i)), a(1,i)*sin(theta(1,i))];
[0, sin(alpha(1,i)), cos(alpha(1,i)), d(1,i)];
[0, 0, 0, 1]];
end
But Octave gives me the next error:
error: operator =: no conversion for assignment of 'class' to indexed 'matrix'
error: called from
SymbolicMatRot at line 14 column 17
I found that in MATLAB I can create Symbolic Multidimensional Arrays like this:
A = sym('a',[2 2 2])
A(:,:,1) =
[ a1_1_1, a1_2_1]
[ a2_1_1, a2_2_1]
A(:,:,2) =
[ a1_1_2, a1_2_2]
[ a2_1_2, a2_2_2]
But Octave gives this error:
error: Cannot create symbolic matrix with that size
error: called from
assert at line 94 column 11
make_sym_matrix at line 23 column 3
sym at line 328 column 9
I don't know another form to store this.
I'm using Win7 with GNU Octave Version: 4.4.1 and Symbolic version 2.7.1
matrix multidimensional-array octave symbolic-math
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
|
show 1 more comment
0
In the code below I try to store the 8 symbolic matrix in MatRot:
MatRot = zeros(4,4,8);
pkg load symbolic
theta = sym('theta',[1 8]);
d = sym('d',[1 8]);
alpha = sym('alpha',[1 8]);
a = sym ('a',[1 8]);
for i=1:8
MatRot(:,:,i) = [[cos(theta(1,i)), -cos(alpha(1,i))*sin(theta(1,i)), sin(alpha(1,i))*sin(theta(1,i)), a(1,i)*cos(theta(1,i))];
[sin(theta(1,i)), cos(alpha(1,i))*cos(theta(1,i)), -sin(alpha(1,i))*cos(theta(1,i)), a(1,i)*sin(theta(1,i))];
[0, sin(alpha(1,i)), cos(alpha(1,i)), d(1,i)];
[0, 0, 0, 1]];
end
But Octave gives me the next error:
error: operator =: no conversion for assignment of 'class' to indexed 'matrix'
error: called from
SymbolicMatRot at line 14 column 17
I found that in MATLAB I can create Symbolic Multidimensional Arrays like this:
A = sym('a',[2 2 2])
A(:,:,1) =
[ a1_1_1, a1_2_1]
[ a2_1_1, a2_2_1]
A(:,:,2) =
[ a1_1_2, a1_2_2]
[ a2_1_2, a2_2_2]
But Octave gives this error:
error: Cannot create symbolic matrix with that size
error: called from
assert at line 94 column 11
make_sym_matrix at line 23 column 3
sym at line 328 column 9
I don't know another form to store this.
I'm using Win7 with GNU Octave Version: 4.4.1 and Symbolic version 2.7.1
matrix multidimensional-array octave symbolic-math
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34
|
show 1 more comment
0
0
0
In the code below I try to store the 8 symbolic matrix in MatRot:
MatRot = zeros(4,4,8);
pkg load symbolic
theta = sym('theta',[1 8]);
d = sym('d',[1 8]);
alpha = sym('alpha',[1 8]);
a = sym ('a',[1 8]);
for i=1:8
MatRot(:,:,i) = [[cos(theta(1,i)), -cos(alpha(1,i))*sin(theta(1,i)), sin(alpha(1,i))*sin(theta(1,i)), a(1,i)*cos(theta(1,i))];
[sin(theta(1,i)), cos(alpha(1,i))*cos(theta(1,i)), -sin(alpha(1,i))*cos(theta(1,i)), a(1,i)*sin(theta(1,i))];
[0, sin(alpha(1,i)), cos(alpha(1,i)), d(1,i)];
[0, 0, 0, 1]];
end
But Octave gives me the next error:
error: operator =: no conversion for assignment of 'class' to indexed 'matrix'
error: called from
SymbolicMatRot at line 14 column 17
I found that in MATLAB I can create Symbolic Multidimensional Arrays like this:
A = sym('a',[2 2 2])
A(:,:,1) =
[ a1_1_1, a1_2_1]
[ a2_1_1, a2_2_1]
A(:,:,2) =
[ a1_1_2, a1_2_2]
[ a2_1_2, a2_2_2]
But Octave gives this error:
error: Cannot create symbolic matrix with that size
error: called from
assert at line 94 column 11
make_sym_matrix at line 23 column 3
sym at line 328 column 9
I don't know another form to store this.
I'm using Win7 with GNU Octave Version: 4.4.1 and Symbolic version 2.7.1
matrix multidimensional-array octave symbolic-math
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
In the code below I try to store the 8 symbolic matrix in MatRot:
MatRot = zeros(4,4,8);
pkg load symbolic
theta = sym('theta',[1 8]);
d = sym('d',[1 8]);
alpha = sym('alpha',[1 8]);
a = sym ('a',[1 8]);
for i=1:8
MatRot(:,:,i) = [[cos(theta(1,i)), -cos(alpha(1,i))*sin(theta(1,i)), sin(alpha(1,i))*sin(theta(1,i)), a(1,i)*cos(theta(1,i))];
[sin(theta(1,i)), cos(alpha(1,i))*cos(theta(1,i)), -sin(alpha(1,i))*cos(theta(1,i)), a(1,i)*sin(theta(1,i))];
[0, sin(alpha(1,i)), cos(alpha(1,i)), d(1,i)];
[0, 0, 0, 1]];
end
But Octave gives me the next error:
error: operator =: no conversion for assignment of 'class' to indexed 'matrix'
error: called from
SymbolicMatRot at line 14 column 17
I found that in MATLAB I can create Symbolic Multidimensional Arrays like this:
A = sym('a',[2 2 2])
A(:,:,1) =
[ a1_1_1, a1_2_1]
[ a2_1_1, a2_2_1]
A(:,:,2) =
[ a1_1_2, a1_2_2]
[ a2_1_2, a2_2_2]
But Octave gives this error:
error: Cannot create symbolic matrix with that size
error: called from
assert at line 94 column 11
make_sym_matrix at line 23 column 3
sym at line 328 column 9
I don't know another form to store this.
I'm using Win7 with GNU Octave Version: 4.4.1 and Symbolic version 2.7.1
matrix multidimensional-array octave symbolic-math
matrix multidimensional-array octave symbolic-math
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
edited Dec 1 at 22:09
Sardar Usama
14.5k82344
14.5k82344
asked Nov 22 at 19:45
Rafa Hernández
84
asked Nov 22 at 19:45
Rafa Hernández
84
asked Nov 22 at 19:45
Rafa Hernández
84
84
I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34
|
show 1 more comment
I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34
I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34
|
show 1 more comment
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I guess by storing its 2D slices.
– Adriaan
Nov 22 at 19:53
and how would it be? @Adriaan
– Rafa Hernández
Nov 22 at 19:58
You could try hardcoding all eight slices, or storing them into a struct/cell array
– Adriaan
Nov 22 at 20:03
I do not know how to work with that @Adriaan
– Rafa Hernández
Nov 22 at 20:12
Coding all the slices it's inefficient but but if there is no other way I imagine that I will do so @Adriaan
– Rafa Hernández
Nov 22 at 21:34