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ﺔﯾدﻮﻌﺴﻟا ﺔﯿﺑﺮﻌﻟا ﺔﻜﻠﻤﻤﻟا

ﻲﻟﺎﻌﻟا ﻢﯿﻠﻌﺘﻟا ةرازو

ﺰﯾﺰﻌﻟا ﺪﺒﻋ ﻚﻠﻤﻟا ﺔﻌﻣﺎﺟ

تﺎﻨﺒﻠﻟ مﻮﻠﻌﻟا ﺔﯿﻠﻛ

يدﺪﻌﻟا ﻞﯿﻠﺤﺘﻟا ﻲﻓ ﻊﯿﺿاﻮﻣ

تﺎﯿﺿﺎﯾﺮﻟا ﻢﺴﻗ

MATH 423

يرود 1

ﻦﯿﻨﺛﻻا 19 - 11 - 1432

ﻝﻭﻷﺍ ﻝﺍﺆﺴﻟﺍ :

ﺔﺑﺎﺟﻹا جذﻮﻤﻧ ﻲﻓ ﺔﺤﯿﺤﺼﻟا ﺔﺑﺎﺟﻹا ﻞﯿﻠﻈﺘﺑ ﺔﯿﻟﺎﺘﻟا ﺔﻠﺌﺳﻷا ﻦﻋ ﻲﺒﯿﺟأ :

1 . ﺰﺸﺒﯿﻟ طﺮﺷ ﻖﻘﺤﺘﯾ (Lipschitz Condition )

ﺔﻟاﺪﻠﻟ y t y t f( , )  ﻲﻓ

ﺮ ﯿﻐﺘﻤﻟا ﺔ ﻋﻮﻤﺠﻤﻟا ﻰ ﻠﻋ y

( , ):0 1 , 3 4

t y t y

D

ﺖﺑﺎﺜﻟﺎﺑ يوﺎﺴﯾ يﺬﻟا L

:

) أ ( 0

) ب ( 1

) ج ( 2

) د 4 (

2 . ﺔﻋﻮﻤﺠﻣ ﻦﻋ لﻮﻘﻧ R2

D ﺔ ﺑﺪﺤﻣ ﺎ ﮭﻧأ (Convex Set)

دﺪ ﻌﻠﻟ ﺔ ﻤﯿﻗ ﻞ ﻜﻟ

1 0

ﻞ ﺟأ ﻦ ﻣو ﻦﯿ ﺘﻄﻘﻧ ﻞ ﻛ

) , ( , ) ,

(t1 y1 t2 y2 ﻦ ﻣ

D ﺖ ﻧﺎﻛ اذإ

ﻲﻓ ﺎﻀﯾأ ﺔﻌﻗاو ﺔﻄﻘﻧ كﺎﻨھ ﻲھ ﺎﮭﺗﺎﯿﺛاﺪﺣإ D

:

) أ

(1)t1t2, (1)y1y2

(

) ب

(1)t1t2, (1)y1y2

(

) ج

(1)t1t2, (1)y1y2

(

) د

(t1t2, y1y2

(

3 . ﻟا ﺔﻟﺄﺴﻤﻟ نﻮﻜﯾ ﺔ ﯿﺋاﺪﺘﺑﻻا ﺔﻤﯿﻘ

 f (t,y) , a t b , y(a) y

ﺔ ﻋﻮﻤﺠﻤﻟا ﻰ ﻠﻋ ﺔﻓﺮﻌﻤﻟا

    

t y a t b y

D ( , ): ,

ﻞ ﺣ

ﺖﻧﺎﻛ اذإ ﺪﯿﺣو :

) أ f ( و ﺔﻠﺼﺘﻣ ﺮﯿﻏ ﺔﺑﺪﺤﻣ ﺔﻋﻮﻤﺠﻣD

.

) ب f ( كﻮﻠﺴﻟا ةﺪﯿﺟ ﺔﻟﺄﺴﻤﻟاو ﺔﻠﺼﺘﻣ (well-posed)

ﻰﻠﻋ .D

) ج f ( ﻰﻠﻋ ﺰﺸﺒﯿﻟ طﺮﺷ ﻖﻘﺤﺗو ﺔﻠﺼﺘﻣ ﺮﯿﻐﺘﻤﻠﻟD

. y

) د f ( ﻰﻠﻋ ﺰﺸﺒﯿﻟ طﺮﺷ ﻖﻘﺤﺗو و ﺔﻠﺼﺘﻣ ﺮﯿﻐﺘﻤﻠﻟD

. t

ﺔﺒﻟﺎﻄﻟا ﻢﺳا :

ﻲﻌﻣﺎﺠﻟا ﻢﻗﺮﻟا :

(2)

2

4 . ﯾوأ ﺔﻐﯿﺻ ماﺪﺨﺘﺳا ﺪﻨﻋ ﺔﯿﻟﺎﺘﻟا ﺔﯿﺋاﺪﺘﺑﻻا ﺔﻤﯿﻘﻟا ﺔﻟﺄﺴﻣ ﻞﺤﻟ ﺮﻠ

5

. 0 ) 0 ( , 2 0

,

2 1

  y t t y

y

ﺚﯿﺣ 10

 طﻮﺒﻀﻤﻟا ﻞﺤﻟا ﺎﮭﻟ ﻲﺘﻟاو ،N et

t t

y( ) ( 1)2 0.5 نﺈﻓ

ﺔﻤﯿﻗ w2

ﺔﻤﯿﻘﻟ ﺐﯾﺮﻘﺗ ﻦﻋ ةرﺎﺒﻋ ﻲھ :

) أ ) ( 0 ( y

) ب ) ( 1 . 0 ( y

) ج ) ( 2 . 0 ( y

) د ) ( 4 . 0 ( y

5 . ﻊﻄﻘﻟا ﺄﻄﺧ (truncation error)

ﺔ ﯿﺋاﺪﺘﺑﻻا ﺔ ﻤﯿﻘﻟا ﺔﻟﺄ ﺴﻣ ﻞ ﺤﻟ ﺮﻠﯾوأ ﺔﻐﯿﺼﻟ

ﺔﻗﻼﻌﻟا ﻦﻣ ﻰﻄﻌﯾ ، :

) أ M ( h h

i1( )  2

) ب M ( L h h

i1( )  2

) ج M ( h h

i

) 2

1( 

) د L (

M h h

i

2 1( ) 

6 . رﺎﯿﺘﺧﺎﺑ رﻮﻠﯾﺎﺗ ﺔﯾﺮﻈﻧ ماﺪﺨﺘﺳا ﻦﻋ ﺮﻠﯾوأ ﺔﻘﯾﺮط ﺞﺘﻨﺗ يوﺎﺴﺗ n

:

) أ 1 (

) ب ( 2

) ج ( 3

) د ( 4

7 . ﺔﯿﺋاﺪﺘﺑﻻا ﺔﻤﯿﻘﻟا ﺔﻟﺄﺴﻣ ﻲﻓ

0 ) 1 ( , 2 1

2 2 ,

  y t e t y

y t t

طﻮﺒ ﻀﻤﻟا ﻞ ﺤﻟا ﺎ ﮭﻟ ﻲ ﺘﻟا )

( )

(t t2 e e

yt

ماﺪﺨﺘ ﺳا نﺈ ﻓ 1

. 0

 ﺐﺒ ﺴﯾ h

بﺎﺴﺣ ﻲﻓ ﺔﻐﯿﺻ ﺄﻄﺧ w1

هراﺪﻘﻣ ﺔطﻮﺒﻀﻤﻟا ﺔﻤﯿﻘﻟا ﻦﻋ ﺮﻠﯾوأ ﺔﻘﯾﺮﻄﺑ :

) أ ( 074092 .

0

) ب ( 17325 .

0

) ج 271828 ( .

0

) د 34592 ( .

0

(3)

3

8 . ﻲﻟﺎﺘﻟا مﺎﻈﻨﻟا ﻞﺣ ﺪﻨﻋ

6 2

6 2

2

4

3 2

1

3 2 1

3 2 1

x x

x

x x x

x x x ﻰﻠﻋ ﻞﺼﺤﻧ :

) أ ( لﻮﻠﺤﻟا ﻦﻣ ﻲﺋﺎﮭﻧ ﻻ دﺪﻋ .

) ب 1 ( ,

2 ,

1 2 3

1xx 

x

) ج 4 ( ,

4 ,

2 2 3

1x  x

x

) د ( مﺎﻈﻨﻠﻟ ﻞﺣ ﺪﺟﻮﯾ ﻻ .

9 . ﺖﺠﺘﻧ اذإ A~

ﺔﻓﻮﻔﺼﻤﻟا ﻦﻋ A

ﺔﯿﻠﻤﻌﻟﺎﺑ

Ei Ej

Ei

jﺚﯿﺣ iنﺈﻓ :

) أ A ( A~ det det 

) ب A ( A~ 1 det det

) ج A ( A~ det det  

) د A ( A~ det det 

10 . ﻲﻜﺴﻟﻮﺸﺗ ﺔﻘﯾﺮط ﻲﻓ (Choleski )

ﺔﻓﻮﻔﺼﻤﻟا ﻞﯿﻠﺤﺘﻟ ﻖﻘﺤﺘﯾ نأ طﺮﺘﺸﯾ A

:

) أ n ( i

lii 1 , 1,2,...,

) ب

n (

i

uii 1 , 1,2,...,

) ج n ( i

u

liiii , 1,2,..., ) د n( i

u

lii  ii , 1,2,...,

(4)

4

ﻲﻧﺎﺜﻟا لاﺆﺴﻟا :

) أ (

ﺔ ﯿﻟﺎﺘﻟا ﺔ ﯿﺋاﺪﺘﺑﻻا ﺔ ﻤﯿﻘﻟا ﺔﻟﺄ ﺴﻣ ﻞ ﺤﻟ ﺮ ﻠﯾوأ ﺔﻐﯿ ﺻ ماﺪﺨﺘ ﺳﺎﺑ

1 . 0 ,

1 ) 5 . 0 (

2 ,

 y t y h

y

ﺎﻣﺪ ﻨﻋ ﻞ ﺤﻠﻟ ﺔ ﯿﺒﯾﺮﻘﺘﻟا ﺔ ﻤﯿﻘﻟا ﻲﺒ ﺴﺣا t

6 . 0

؟ t

.

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

__________________________________

) ب (

ﺞﻧور ﺔﻘﯾﺮط ماﺪﺨﺘﺳﺎﺑ -

ﺔ ﯿﺋاﺪﺘﺑﻻا ﺔ ﻤﯿﻘﻟا ﺔﻟﺄ ﺴﻣ ﻞ ﺤﻟ ﺔ ﻌﺑاﺮﻟا ﺔ ﺒﺗﺮﻟا ﻦ ﻣ ﺎﺘﻛ

ﺔﯿﻟﺎﺘﻟا 1

. 0 ,

1 ) 0 ( , 1 0

,    

 t y t y h

ﻲﺒﺴﺣا y w2

؟

...

...

...

...

...

...

...

...

...

...

...

...

(5)

5

...

...

...

...

...

...

...

...

...

...

_____________________________________________

__

) ج (

ﺔﻓﻮﻔﺼﻤﻟا ﻲﻠﻠﺣ

2 2

1

3 1 7

4 3 2

ﻦﯿﺜﻠﺜﻤﻟا ﺎﮭﯿﻠﻣﺎﻋ ﻰﻟإA

U L A

ﺔﻘﯾﺮﻄﺑ

ﻞﯿﺘﯿﻟود (Doolittle)

.

...

...

...

...

...

...

...

...

...

. ...

...

...

...

...

...

...

...

...

...

(6)

6

...

...

...

...

...

...

...

...

...

...

________________________________________________

) د ( نأ ضﺮﻔﺑ :

2 1 0

1 2

0 1

A

ﻢﯿﻗ ﻊﯿﻤﺟ يﺪﺟوأ

, ﺗ ﻲﺘﻟا ﺎﮭﻠﺟأ ﻦﻣ نﻮﻜ :

) أ ( ةﺮظﺎﻨﺘﻣ A

) ب ( ةذﺎﺷ A

...

...

...

...

...

...

...

...

...

...

...

...

______________________________________________

ﻦﻳﺭﺍﺪﻟﺍ ﰲ ﻖﻴﻓﻮﺘﻟﺎﺑ ﻦﻜﻟ ﰐﺍﻮﻋﺩ

ةدﺎﻤﻟا ةذﺎﺘﺳا

د . ﺎﺑ ىﺪھ حدﻮﻛ

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