M AT L AB is able to solve gives are extremely long and complicated.
B riIPa2 G 2 ¡ 8 ge2 ¡ 6 ge2 ¡ 0 ¡
The command double(ans) numerically evaluates ans, in this case the symbolic solutions to . (Note. double(ans) does not mean 2 * ans; double is short for double precision.) The numerical solutions we obtain are
y u " u 4s B 77T@7W)7xV@w77tVqP¡ v u 4 As ¥ £ R y " u " 4s B v u 4 s B G
One reason an exact, symbolic solution may not be as useful as an approximation is that when we measure things we usually use decimals or very simple fractions.
C 6 (q9q(hg#2 § ¥ 2 ¡ ¡ G § ¥ 2 ¡ 8 g52 ¡ 6 92 ¡ ¡ G ¡ 8 g52 ¡ 6 g#2 ¡ C
3. Solving is
0 ¡
gives
. The reason the answer is so nice is that .
B Q)1¡ G E D
4. M AT L AB is unable to factor or to solve numerical solutions (to four decimal places)
C
, symbolically. M AT L AB gives the
None of the algorithms M AT L AB uses to obtain symbolic...
No comments