sistema de ecuaciones resolucion

7/23/2019 Sistema de Ecuaciones Resolucion

1/4

1.->> A=[4 -9 2;2 -4 6;1 -1 3] 4 -9 2 2 -4 6 1 -1 3>> b=[5 3 4]' 5 3 4>> solu=inv(A)*b 6.9500 2.5000 -0.1500

2.->> B=[4 -9 2;2 -4 6;1 -1 3] 4 -9 2 2 -4 6 1 -1 3

>> c=[ -3 5]' -3 5>> so=inv(B)*c -5.431 0.0455 2.6364

3.->> !=[1 1;0.0003 3]

1.0000 1.0000 0.0003 3.0000>> "=[1 2.0001]' 1.0000 2.0001>> solu=inv(!)*" 0.3333 0.666#

4.-

>> $=[10 1 -5;-20 3 20;5 3 5] 10 1 -5 -20 3 20 5 3 5>> %=[1 2 6]' 1 2 6>> solu=inv($)*% 1.0000 -2.0000

1.4000

5.->> &=[4 -9 2;2 -4 6;1 -1 3]


2/4

4 -9 2 2 -4 6 1 -1 3>> =[5 3 4]' 5 3 4>> usso"n(&+) 6.9500 2.5000 -0.1500

6->> AA=[2 1 6 5;4 -6 # -3;0 2 3 ]

2 1 6 5 4 -6 # -3 0 2 3

>> sol=,%(AA) 1.0000 0 0 -5.60#1 0 1.0000 0 -0.0#14 0 0 1.0000 2.#143

#.->> BB=[3 -0.1 0.2 #.5;0.1 # -0.3 -19.30;0.3 -0.2 10 #1.40]

3.0000 -0.1000 0.2000 #.500 0.1000 #.0000 -0.3000 -19.3000 0.3000 -0.2000 10.0000 #1.4000

>> sol=,%(BB)

1.0000 0 0 2.0653 0 1.0000 0 -2.454 0 0 1.0000 #.023

.->> !!=[10 1 -5 1;-20 3 20 2;5 3 5 6]

10 1 -5 1 -20 3 20 2 5 3 5 6

>> sol=,%(!!) 1.0000 0 0 1.0000 0 1.0000 0 -2.0000 0 0 1.0000 1.4000

9.->> c=[4 -9 2;2 -4 6;1 -1 3]

4 -9 2


3/4

2 -4 6 1 -1 3>> "=[5 3 4]' 5 3 4>> [+]=lu(c);>> /=inv()*";>> =inv()*/ 6.9500 2.5000 -0.1500

10.-

>> ,=[3 -0.1 0.2;0.1 # -0.3;0.3 -0.2 10]

3.0000 -0.1000 0.2000 0.1000 #.0000 -0.3000

0.3000 -0.2000 10.0000

>> %=[#.5 -19.30 #1.40]' #.500 -19.3000 #1.4000>> [+]=lu(,);>> /=inv()*%;>> =inv()*/ 2.0653 -2.454

#.023

11.->> =[10 1 -5;-20 3 20;5 3 5]

10 1 -5 -20 3 20 5 3 5>> =[1 2 6]' 1

2 6>> [+]=lu();>> /=inv()*;>> =inv()*/ 1.0000 -2.0000 1.4000

12.-

>> =[1 -1 3;4 -9 2;2 -4 6]

1 -1 3 4 -9 2 2 -4 6


4/4

>> b=[4 5 3]' 4 5 3>> uss,i",l(+b)******************************* 1 2 3

0.00000 0.00000 4.00000 1.22222 5.2### 1.#6015.991## 2.09221 6.39956 2.26593 6.63363 2.36549 6.#6142.4226 6.4546 2.45555 6.991 2.4#445 6.91546 2.45316.93014 2.49156 6.9359 2.49515 6.94344 2.49#21 6.946232.4940 6.94#3 2.4990 6.94#5 2.4994# 6.9492 2.499#06.94959 2.4992*******************************ns =

6.9496 2.499 -0.1500

13.->> c=[4 -1 0 0;-1 4 -1 0;0 -1 4 -1;0 0 -1 -4]

4 -1 0 0 -1 4 -1 0 0 -1 4 -1 0 0 -1 -4>> "=[1 1 1 1]' 1 1

1 1>> uss,i",l(c+")******************************* 1 2 3

0.00000 0.00000 0.25000 0.31250 0.3213 0.414060.35352 0.40601 0.35150 0.40590 0.3514# 0.4056 0.3514#0.4056 0.35146 0.4056 0.35146 0.4056 0.35146 0.40560.35146 0.4056 0.35146 0.4056 0.35146 0.4056 0.351460.4056*******************************

ns =

0.3515 0.4059 0.2#20 -0.310

sistema de ecuaciones resolucion

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