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Cálculo Numérico: Ejemplo de métodos iterativos para solucionar una función, Ejercicios de Métodos Numéricos

Documento que muestra el proceso de aplicación del método de Newton-Raphson y la bisección para encontrar las raíces de la función f(x) = 10*x + (2*(x^2)*seno(2*x)) + 5, utilizando el método de Aitken para mejorar la aproximación.

Tipo: Ejercicios

2019/2020

Subido el 08/07/2022

Jorge_YT.2021
Jorge_YT.2021 🇵🇪

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PUNTO FIJO
INICIAL -6
VARIACION 0.5 10*X+(2*(X^2)*SENO(2*X))+5
x f(x)
-6 -16.3667499
-5.5 10.4994075
-5 -17.7989445
-4.5 -56.6907987
-4 -66.6594639
-3.5 -46.0961717
-3 -19.970521
-2.5 -8.01344657
-2 -8.94558004
-1.5 -10.63504
-1 -6.81859485
-0.5 -0.42073549
0 5
0.5 10.4207355
1 16.8185949
1.5 20.63504
VALOR INICIAL 0.45
PUNTO FIJO 1E-05 0.0001
I xi AITKEN d=|Xi+1 -Xi| |f(xi+1)| |g'(Xi+1)|
0 0.45
1 0.4595 0.0095 0.0095 0.1838
2 0.45777195 0.00172805 0.00172805 0.18310878
3 0.45808897 0.00031702 0.00031702 0.18323559
4 0.4580309 5.80689E-05 5.80689E-05 0.18321236
5 0.45804154 1.06396E-05 1.06396E-05 0.18321662
6 0.45803959 1.94933E-06 1.94933E-06 0.18321584
7 0.45803995 3.57149E-07 3.57149E-07 0.18321598
8 0.45803988 6.54355E-08 6.54355E-08 0.18321595
9 0.45803989 1.19888E-08 1.19888E-08 0.18321596
10 0.45803989 2.19654E-09 2.19654E-09 0.18321596
NR
I xi d=|Xi+1 -Xi| |f(xi+1)| |g'(Xi+1)|
0 0.45
1 0.46397059 0.01397059 0.01397059 0.18558824
2 0.45372489 0.0102457 0.0102457 0.18148996
3 0.46121121 0.00748632 0.00748632 0.18448449
4 0.45572625 0.00548496 0.00548496 0.1822905
5 0.45973695 0.0040107 0.0040107 0.18389478
6 0.4568 0.00293695 0.00293695 0.18272
7 0.45894839 0.00214839 0.00214839 0.18357936
-7 -6 -5 -4 - 3 -2 -1 0 1 2
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-40
-20
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20
40
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PUNTO FIJO

NR

|g'(Xi+1)|

|f(xi+1)| |g'(Xi+1)| 0.10769231 3. 0.00765326 3. 3.90462E-05 3 1.01641E-09 3 0 3 0 3 0 3 0 3 0 3 0 3

SECANTE

STEFEENSEN

ILLINOIS

  • INICIAL -
  • VARIACION 0.5 10X+(2(X^2)SENO(2X))+ - -6 -16. x f(x)
    • -5.5 10. - -5 -17.
    • -4.5 -56. - -4 -66.
    • -3.5 -46. - -3 -19.
    • -2.5 -8. - -2 -8.
    • -1.5 -10. - -1 -6.
    • -0.5 -0.
      • 0.5 10. - 1 16.
      • 1.5 20. - VALOR INICIAL 0.
  • PUNTO FIJO 1E-05 0. - 0 0. I xi AITKEN d=|Xi+1 -Xi| |f(xi+1)| |g'(Xi+1)| - 1 0.4595 0.0095 0.0095 0. - 2 0.45777195 0.00172805 0.00172805 0. - 3 0.45808897 0.00031702 0.00031702 0. - 4 0.4580309 5.80689E-05 5.80689E-05 0. - 5 0.45804154 1.06396E-05 1.06396E-05 0. - 6 0.45803959 1.94933E-06 1.94933E-06 0. - 7 0.45803995 3.57149E-07 3.57149E-07 0. - 8 0.45803988 6.54355E-08 6.54355E-08 0. - 9 0.45803989 1.19888E-08 1.19888E-08 0. - 10 0.45803989 2.19654E-09 2.19654E-09 0. - 0 0. I xi d=|Xi+1 -Xi| |f(xi+1)| |g'(Xi+1)| - 1 0.46397059 0.01397059 0.01397059 0. - 2 0.45372489 0.0102457 0.0102457 0. - 3 0.46121121 0.00748632 0.00748632 0. - 4 0.45572625 0.00548496 0.00548496 0. - 5 0.45973695 0.0040107 0.0040107 0. - 6 0.4568 0.00293695 0.00293695 0. - 7 0.45894839 0.00214839 0.00214839 0. - -7 -6 -5 -
    • 8 0.45737561 0.00157278 0.00157278 0.
    • 9 0.45852635 0.00115074 0.00115074 0.
  • 10 0.45768406 0.00084229 0.00084229 0. - 0 0. I xi d=|Xi+1 -Xi| |f(xi+1)| |g'(Xi+1)| - 1 0.55555556 0.10555556 0.10555556 8. - 2 -0.5 1.05555556 1.05555556 - 3 -10 9.5 9.5 0. - 4 -5.25 4.75 4.75 0. - 5 -5.47619048 0.22619048 0.22619048 0. - 6 -5.45652174 0.01966874 0.01966874 0. - 7 -5.45816733 0.00164559 0.00164559 0. - 8 -5.4580292 0.00013813 0.00013813 0. - 9 -5.45804079 1.1592E-05 1.1592E-05 0.
    • 10 -5.45803982 9.72801E-07 9.72801E-07 0.
  • -6 -5 -4 -3 -2 -1 - - - - - - - -
  • INICIAL -1.
  • VARIACION 0.
    • -1.5 x f(x)
    • -1.3 1.
    • -1.1 0.
    • -0.9 -0.
    • -0.7 -0.
    • -0.5 -
    • -0.3 -1.
    • -0.1 -1.
      • 0.1 -0.
      • 0.3 -0.
      • 0.5
      • 0.7 0.
      • 0.9 1.
      • 1.1 2.
      • 1.3 3. - 0 0. I xi - 1 0. - 2 0. - 3 0. - 4 -0. - 5 -0. - 6 -0. - 7 0. - 8 -0. - 9 0.
        • 10 -0.
          • 0 0. I xi
          • 1 0.
          • 2 0.
          • 3 0.
          • 4 0.
          • 5 0.
    • 6 0.
    • 7 0.
    • 8 0.
    • 9 0.
  • 10 0.
    • 0.0050279455 0.00502795 0.
  • 0.00250976174 0.00250976 0.
  • 0.00125593098 0.00125593 0.
  • 0.00062770263 0.0006277 0.
  • 0.00031391699 0.00031392 0.
  • x0= 0.4 e= 10^- NEWTON -RAPHSON - 0 0. I xi d=|Xi+1 -Xi| - 1 0.507692 0. - 2 0.500039 0. - 3 0.500000 3.90462308E- - 4 0.500000 1.01641E- - 5 0.500000 - 6 0.500000 - 7 0.500000 - 8 0.500000 - 9 0.500000
    • 10 0.500000
  • x0= 0.4 e= 10^-
  • x1= 0.
    • 0 0. I xi d=|Xi+1 -Xi| |f(xi+1)|
    • 1 0.6 0.2 0.
    • 2 0.49333333 0.10666667 0.
    • 3 0.49958159 0.00624826 0.
    • 4 0.50000187 0.00042028 0.
    • 5 0.5 1.86895E-06 1.86895E-
    • 6 0.5 5.21323E-10 5.21323E-
    • 7 0.5
  • xi=x1= 0. xd=x0= 0.6 Entonces - 0 0. I xi - 1 0. - 2 0. - 3 0. - 4 0. - 5 0. - 6 0. - 7 0. - 8 0. - 9 0.
    • 10 0.
  • f(xd)= 0.
    • f(xi=) -0.
      • 0.6 0. xd xm |Xm(i+1)-Xm(i)| |f(Xm)| PROMEDIO
      • 0.6 0.
      • 0.6 0.02008889 0.02008889 0.
      • 0.6 0.17570528 0.1556163950617 0.17570528 0.
      • 0.6 0.25171814 0.0760128544307 0.25171814 0.
      • 0.6 0.28792948 0.0362113393271 0.28792948 0.
      • 0.6 0.30498897 0.0170594917854 0.30498897 0.
      • 0.6 0.3129851 0.0079961293734 0.3129851 0.
      • 0.6 0.31672426 0.0037391564948 0.31672426 0.
      • 0.6 0.31847086 0.0017466012231 0.31847086 0.
      • 0.6 0.3192863 0.0008154424141 0.3192863 0.
  • Xm= 0. BISECCION
    • xd=x0= 0. - 0 0.4 0. xi=x1= 0.4 I xi xd - 1 0.40 0. - 2 0.47 0. - 3 0.47 0. - 4 0.49 0. - 5 0.50 0. - 6 0.50 0. - 7 0.50 0. - 8 0.50 0. - 9 0.50 0.
      • 10 0.50 0. - 0.54 -0.28 0.1232 -0. PROMEDIO(xr) F(xi) F(xr) F(xi)*F(Xr) - 0.47 -0.28 -0.0882 0. - 0.505 -0.0882 0.01505 -0. - 0.4875 -0.0882 -0.0371875 0. - 0.49625 -0.0371875 -0.01122188 0. - 0.500625 -0.01122188 0.00187578 -2.105E- - 0.4984375 -0.01122188 -0.00468262 5.25477E-
        • 0.49953125 -0.00468262 -0.00140581 6.58287E-
      • 0.500078125 -0.00140581 0.00023439 -3.295E-
    • 0.4998046875 -0.00140581 -0.00058586 8.2361E-
  • 0.49994140625 -0.00058586 -0.00017577 1.02979E-
    • 0 0. I xi X'0 |f(x'0)|
    • 1 0.
    • 2 0.47554045175 0.49923370279 0.
    • 3 0.51208375694 0.49980131862 0.
    • 4 0.49392116935 0.49995122518 0.
    • 5 0.50303023302 0.49998769481 3.6915271E-
    • 6 0.49848258093 0.49999693767 9.1869825E-
    • 7 0.50075813477 0.49999923267 2.3019804E-
    • 8 0.49962078882 0.49999980839 5.7484108E-
    • 9 0.50018956966 0.49999995207 1.4379204E-
  • 10 0.49990520619 0.49999998802 3.593779E-
  • d=|Xi+1 -Xi| x0= 0.4 e= 10^-
  • -0. - 0 0.4 0.68 0. I xi xd PROMEDIO(xr - 1 0.40 0.54 0. - 2 0.47 0.54 0. - 3 0.47 0.505 0. - 4 0.49 0.505 0. - 5 0.50 0.505 0. - 6 0.50 0.500625 0. - 7 0.50 0.500625 0. - 8 0.50 0.500625 0. - 9 0.50 0.50007813 0. - 10 0.50 0.50007813 0. - -0.28 0.1232 -0.034496 0.6048 -0. F(xi) F(xr) F(xi)F(Xr) F(xd) F(xi)F(xd) - -0.28 -0.0882 0.024696 0.1232 -0. - -0.0882 0.01505 -0.00132741 0.1232 -0. - -0.0882 -0.0371875 0.00327994 0.01505 -0.
    • -0.0371875 -0.01122188 0.00041731 0.01505 -0.
  • -0.01122188 0.00187578 -2.105E-05 0.01505 -0.
  • -0.01122188 -0.00468262 5.25477E-05 0.00187578 -2.105E-
  • -0.00468262 -0.00140581 6.58287E-06 0.00187578 -8.7836E-
  • -0.00140581 0.00023439 -3.295E-07 0.00187578 -2.637E-
  • -0.00140581 -0.00058586 8.2361E-07 0.00023439 -3.295E-
  • -0.00058586 -0.00017577 1.02979E-07 0.00023439 -1.3732E-