how to define a unknown matrix

Question

0 个投票

i have 10 unknowns

for example d1_1 d1_2 d2_1 d2_2 d3_1 d3_2 d4_1 d4_2 d5_1 d5_2

and i would like to place them into a matrix d which

d ( : , : , 1 ) = [ d1_1 ; d1_2 ] ;
d ( : , ; , 1 ) = [ d2_1 ; d2_2 ];
. . . . . . . . . . .

is there any simpler way for me to define this d matrix?

thank you!

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Answer 1

Walter Roberson 2012-12-5

0 个投票

If you have a relatively new version of the Symbolic Toolbox (R2011b or later I think it is),

d = sym('d', [5 2])

YI Hsu Lo 2012-12-5

oh i don't think i have that ;-(

so there is no other way to solve this problem?

anyway, thank you!

Walter Roberson 2012-12-5

No. Symbolic Toolbox (or equivalent) is the only way to express unknowns.

Or is your question that you have 10 known values and you want to place them in an array?