A = sym('A', 4)
B = sym('B', 3)
x = A*A(1:4,1)+[B(1:3,1); 0]
subs(x, {A, B}, {diag([3,2,1,0]), diag([1,3,5])})
A =
[ A1_1, A1_2, A1_3, A1_4]
[ A2_1, A2_2, A2_3, A2_4]
[ A3_1, A3_2, A3_3, A3_4]
[ A4_1, A4_2, A4_3, A4_4]
B =
[ B1_1, B1_2, B1_3]
[ B2_1, B2_2, B2_3]
[ B3_1, B3_2, B3_3]
x =
A1_1^2 + B1_1 + A1_2*A2_1 + A1_3*A3_1 + A1_4*A4_1
B2_1 + A1_1*A2_1 + A2_1*A2_2 + A2_3*A3_1 + A2_4*A4_1
B3_1 + A1_1*A3_1 + A2_1*A3_2 + A3_1*A3_3 + A3_4*A4_1
A1_1*A4_1 + A2_1*A4_2 + A3_1*A4_3 + A4_1*A4_4
Error using sym/subs>normalize (line 231)
Entries in second argument must be scalar.
Error in sym/subs>mupadsubs (line 157)
[X2,Y2,symX,symY] = normalize(X,Y);
Error in sym/subs (line 145)
G = mupadsubs(F,X,Y);
Error in debug_sym (line 4)
subs(x, {A, B}, {diag([3,2,1,0]), diag([1,3,5])})
subs(subs(x, A, diag([3,2,1,0])), B, diag([1,3,5]))
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