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proble in using "solve function
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i am using solve function to equate two equations but the result are not the one that i want and also have problem with the format of the result . the exp. is
[L D] = solve(L*(D-d)==0.1386,L/(D-d)==3.6,'Real',true)
==============
the result is in fraction form or some times show empty matrix
1 Comment
Walter Roberson
on 20 Jan 2014
L = (9/250)*sqrt(385), D = (1/100)*sqrt(385)+d
L = -(9/250)*sqrt(385), D = -(1/100)*sqrt(385)+d
Answers (2)
Mischa Kim
on 20 Jan 2014
Edited: Mischa Kim
on 20 Jan 2014
Have you assigned a numeric value for d ?
syms L D
d = 1;
[L D] = solve(L*(D-d)==0.1386,L/(D-d)==3.6,'Real',true)
L =
385^(1/2)/100 + 1
1 - 385^(1/2)/100
D =
(9*385^(1/2))/250
-(9*385^(1/2))/250
double(L(1))
ans =
1.196214168703486
1 Comment
Walter Roberson
on 20 Jan 2014
double(L), double(D)
3 Comments
Walter Roberson
on 22 Jan 2014
S = solve(L*(D-d)-Aw,L/(D-d)-3.6,'Real',true);
S.D
S.L
and if appropriate,
double(S.D)
double(S.L)
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