oa NTs _ oe
: ” Tntor polddioy Me ha Me a
the process a Computing ye PO fol Some vedluves ay a
lich Wes blu om trtowal) ic cabled | interpolation + Dy ,
$eds raptor, we tntioduce eobtal raw cablil tt Sawer ,
hoceward dtHerences and central differences of a function
N= F(x) Pou - Gy ;
Fouwand difprrences : tet Ve-t(w) be the functional nelationthip
blw 2 Variables X EY ene ts the independent Vortable
x and Vis te dependent vontdlble.’ tek x takes Hee Value
Ber Rutay <8 | Kn andy gels toutes’ Hat!) Value Vo, ¥,7 yy”
wy otw: wh Gh) - Hoo —_O i
Here, bts Ae Teubaad’ Ueperence!’ cpesitiey
pak x2 % in eang i vy POL)
& $00) = Fimothy tems) p's VA Me = Eoug)th,
SYo= Hu)- +L) ~. Y= 4buy
®Y0 = Wir de We
POR KEK Mvegn@! ” 5
& ton) = fut n)— FO)” yo
OY = Bap ry vs
Posies sys, = be
KAYE Teas 9 cathy Poke
 
OGW Napa a (ntotig OS)
Crwand Lheronce table :
 
 
 
x Y fay a | ) | aby aty
x ; Par i -|
e Yee. Ayo er |
AE 4 BO 10 aty
7 gis 6 aN 7
». a 7 ah
| s Me DY Pep,
| z
fee
| Rectan lipprence gt ae
él ! . fi
i. 4= FOS be Hew Functional rdaktonsiip blu & VamableySere th a. Wndapenduntii G24
i RY. hee x bs Tndependunt Voxtabcle and Y 6
indent Vostcusle « i ty! balers tte Volise mor Au Mar
cond ¥ tales ste Nabue Yo, ry Ya 1
TE SEIN) i ah) ‘o. '
SHAE TEC AGE Symbol OF Baclevonsidl ayo ape
   
   
   
  
af
pub aaa NS BeV/O! > ya cit
arty) = ey) EMD A ge jon a7
Tae Qi Yo. ; ie vp A lind
fa Rh a Nar Me
ORE a eae fasiy tiene’
 
A eyo)
«Oe Fe
noe Yan Yn sl me 273-=)
eo tfference table OQ as h of
 
yutyeyt ele” AY Oy tery! Bty fe
Xo. 1" geet \ va
MY wa vy you = of
4 ae
ee ee
Soy Se /3, (i ai
x P % Ie yy v ei
Gye WN OY, ag
Tp (x) = 4+5K-7 féima table 1 Wand di ”
taking x= WO lS, U/S hou Hak tre ee
axe omstant J
Cs» Jase feats Ts
! [ety [-3 A = Bs aT hes] ee
Frwond difterence table . i
dy PMA BIAS i at ae Ac
 
 
 
 
 
 
 
 
 
Fall
6 '
‘ if i ° .
2 24 A 0
f ee, ua OAS
VAP Cage 4 *the soe table gives Set q Vals Ux,
and the  Goneypencking value dp Yo #4)
x 10 IF as |30 |35.
Qrsi Re ee 25:34,
teible” Heal. oon coum
20
2247
 
 
 
q oies
Gaom forworkd — difference
Here Vohlius) a AH) f 20107, O2fU5) jist #(15)
 
: Fonwad Aifferunce table.) .), ; fa)
Lag ag” Ie,
. 4 Booth tie 4
to | (Site
= St ROMS soi Wily
Is Bers ly ‘otac S "0-610
0°04 [OBS !
ogee etl.o50 -o0°ol 120
ais 2252 0708 0704
1139 og 0703
0 265° .
ZO 2y-65 pud y vs
B5 25°84
ad fs) =e 0201,
AftUo) = St (
OY £0) = ~0°580 Bt eulsd= oO OF
> DB the interval of diferoncing yy uty
prove tok ‘A Te Ot G42) (at3)] = te (AEN IC2) OOS)
oop oy
we kmow trot 5).
ettn) = $Obh)= FOO
fia) 2 @
(acr2yi(a3) 12 4
Ate) —7®
A= + (t+ -
lee (= KUATD
Heatly = Ket (442), OFS, Jt
Substtuling <4! &@ ™ eqn ®
B [a (ar (ate) (ut) J = (KEV HD) OD) (aty) -
x (att) Cat 2) OLS)
= CO) (Kt2) (xt3) [Rte x]
a Freire 2) 430) 2Averog “operate
he 4 di et the Ha
voage cpoator ow dein ey
is ECs, he J , | wan lard
‘Shifting apercitior Yeh Saget 4 ar
The shifting pbs HEN. is ¢ ‘defined py: theg
prvation ‘ry ‘= ac) tess Sous tei the
HE te, ey cathe He functtonatt value Yn
 
repr 4
he next higher Vole. Aotia peg vs ql
eens P ae
fre 4 “| Pee tide he
Ein RE ayy eg Seek
a
e = Yous SS yay fe ae
: ; ‘
nie? Yas (or ha i ie
B ssloncnse OM wes thee aga" = (Oy
we hove} OY a oro vs}j Ha Laveadge! gfe
Bo nh oo HTB, ay EW Ey Patt tg Ble
tie = Yo [e-1] , i
Om 4Tef] 6+ Tet] oy Feat
> Relottonrtalp bles blo ee 4
jee BE = Teme ee] Ph AQ) 2g
ee know +tak, ' \ ie
Jtyn = 1 Cais 1b
Yn EU ney = rn] a
cme | Tc ot f
pa 2 [eM Mn - +P Gn] a
ror tNaoktons Fetwand ‘nterpallation founuloy: 1354
Fn = Yor a Og uney Sat YEWOD rg,
: u
‘ Ae i
( ahha . 4 VLUDWery Hy?
hee &!
2
Meg Oe YOR Pd) Cr pay Pro F
here, Wis the Common dR [ference
Newtons back wand Snterpotation fimulo’:
f= Yast ayy 4 ver or Ju tutta)
x ta Ze ae et PE wont
Sf AME? Aida tR Some cetie sue Br
ae VW) Wha L DS yn ee
ye tee COG Hep ai Oe
| he common di pence!
the population of a fear (in, tte decimal Senses wes
gen below: timole tu population fh Hee yer IAS
Yeoa LX) ISA AOL ane lap WJ
“Pa Pt is
populoatig(v) 4e 66 08 93 to}
sinte, Ate = 1995 - Ues,.Stankeng . oF table: $0, We COU) |
Abe newkors srrvoand water polatten formula i
Foye Yot 9 BYot Ul 6G tVWA)W2)
24 lay
 
lee US,
 
 
Sp t PLOW)
a i)
N-F-p +able <~ “4 aL By
2 ee ; -
, ES wv a at
(aq) 4g
aa d
(401 6L Uipocis) @ i ¥
7 fe) - 2
Ary & By ee, j ») (Lda)
ge) yo "38 aE
| a2) 34 )
c a4
1931 10) % + ee©. ke ;
=)0%ffh eps Mh
hh ie 6
   
  
   
  
$U895) = 464 O-t; (24) +O) (5) + o ¢(OU-1)
a 7) APRS)
8 y I
+ Ov (OmG—U) (O-Y-2) LO-Y-3)
\ sane 4 4 APE PAF A
2 BH 658 vol folly log? ie
Fewotns eaexeaond, (Ud Fy? tbe, boo ieg
Since xe 1425 tes” : ah 4
use rectors loaceurand _ fnterpolabion total
val >
i
 
 
lott) ge oUt) LF
Fo= Ynt a Son) ae v Ant =f
   
art cae OLA YB) Saye x
ae same able’! ' a Ph ¢ Peay OF
Us $025- (93) 2 HOG )) yee (aaa
wy KPA
ee ee
(241 Ge we
1 Mt} 12 Jeg?
tau » Ql =3 ink ¢
W243 me
1431 lol cy) Ww
¢: Haye loy4 C0) (9)
(0-6) (-o.
$ OB Coed) co
0:6) (—o» a 4
BIE ce) nt ea) + 606) Core!) t
| : Ho
j Coetsy
= Wl - &Sto.qg_
01056 +05 104 oy
= 16. 83T-Ty Ho =I
» HHO, Moe 5, Hg=22, Mae ST tind HG. Tel?
 
 
 
 
 
 
 
 
Given eta uh ig ‘ a.
| sof s| BM) ae « i
fae [1 [o 5 |aal sq
Simce ak X= 05 ] 7 i
uring, NOPD fmito, ne
£00 =
Yot Udyor veord Yo a vlorlu2) ,
Sh Ye 1 Weeds
 
 
3
L do) _ Ose
oda ahi Rowe wet! 9
NED Table aye lsh ra
na ms) eres AY
og
=~ 2 ed
Nob ost ge )oGeank: b9,"A@} obo eoiAtG, 0
me 4 te °
eS a5 \e ; i
4 87
oe Ls Ts
FOE at 0:5 (1) ies SY (0, eNusnory Ye
3h
0-5 (0-5-1) (0°S-2YO-5-4)
tos) = a Sener (0)
FR K=O 23)5 6 L0Q= ld 1S; Se find £03) sg,
Newtons forword  defference! pete!
(O12s
Given throaty
R20. oilsig® oD BB) : a%
V4) 1 1g 1s 6 &
Using giSince f ok x 23
Using nh ET sfovmulla,
Fad = Yor Vdyo+ vlw-t) Wyo 4 (VA) (0-2)
ds
& a ot
Veo
vs
U= 3-0 : =< Dd WS) |
ae i 5YE Be ee Oe ot
5 \ "
\
fe AY sinh:
\ \
ts -u al
Bee tO 
 ages 2 ! > ‘ |
A) | —2 eS
By uiteg FT Formule
Hays + WSU + ulu-) (OA) (U-2
Yo Yo Ps 8Yo OO 4 o(o-ytory
 
Heuer. 3h (vs) 4
= : ~s,
NED table ie eh 0
BON BO AAW eh ramad |
oy |
3 z
tl 3 |
pape] By 2 “*O
cw ) =i |
ae 1S = Zfind THE Grbic  poltpnovntaf odd, falestew « folloutig
yobs — Yojrl qr . {A= t, YEW hence our
ovr 4 (4) :
« © BY > Apply Newtons Onterpolotton formula
compute tre value % VES Geven that V5 =2-936,
NGF RK49, JT 2 2.646, (Ee 8.898. Correct upto 3 decimal
le Y= fay Yee.
a! 6 qo
yk RAD BWYGY LEGG 2-828"
Lagranges Interpolation t#mula
An be 4ee? (ney Value oe
v Yor dA
wa lee Yor PM bas >
alidh aw Not necenarly Equally’ §
Yn be the Corresponding vou 9 NS etly)
Te gaaeut Some
mre pcm) (4%).
EvoLuiet 50d) gfuen “Ye, Vee, 42, 336 ak AEh 4S
respectively. giver lagrorges pirate -tetrnula «
a Given feck,” Ne
x \ a (S.
Yetta) 168, ytaae 336-5 | ae k :
«earn, Hea Vous Ao, Med | OMe RES
Yh tates Hae! Voli “Mor Mer Ys)
By using lagranges tntexpolakion fyimula
“Enyce Oy) Ge) & rhe) Oo) yg) ALON
Pei) ( 2 ) Yo* (ante) 2) Bo) OW)aa 0 ie to is) " 4 MOE oe (io- Is)
Cle uaz) + °
YC I8) G- Duets)
SMPs HL B84)
Usey Use
fuo)= 23)
Hind te Unique polynomial, por) % degree 2,
leo Sach thak = PLY =I playe 27) plu) = 64
Uring logranges tnterpolation. toxmula,
Bee al Bes) Rene ie OI §
NAAM. > 0.04 bu
 
fotmetlo,
by ey Legaaiges Ge ey :
Foy 2 GW" Gey’ peers 5) eye) Cay)
© Goi) (e742) a ot
eA)
 
Carts ) Cae,
=P)
wetenerw | (aay wept
     
 
 
 
au) (EY (Ua) trol )
ES eoU KR BK! hy Reap 2a
reer 4 tae dia’ —Zx-x143
Ad) B+ (-1) (39) Sings
2 WOK rE ext 4 ‘ i
io ae Gat Rwets 1h
g # x
= XCAMH2 4-8
   
  
Spmeacres
x KA Xtae ——————
>
Sherr. Nek AIL gx text
6
Gauss forward tnterpolatton formula :
P= Oe dor Vat MOP nee sotoucuny ,
Baty
Y= 1) (¥-2) (Ufa
1
fee We x-%o : ee ee.
h
Gouss Backwand _Islerpolatin formula »
Ge Fs Yor Vay + ty oy E YO-DUED 2
i as 2
Y(V-D(va(Vt) 4
— ait ya ty
«I “4
lee UW= *X-%o 5
n ea 7
Find yey qven, derouk YlA) = AY ry (2H) HBS
(48) = 35 » yee = 40 Using gauss forwork
ditference dibs
DI Qiven tok, |
 
 
 
 
By uring — gaun foswond difierence towmnula -
Ge HO= Yot UdYo = ony ot NOBLE Dg +
VU-) (ODWWtY ge
a
| ae= 32.945 he ce cae
Find #8) given Wak ‘data’ {(25)= 0.2107,
(30) = eS 2027 , (35) = 0:3386, ALO) =
 
    
  
EME
Ghen taal, ey. eg ih
Bq uring gauss Bitaads dite faim
Y= 400 = Hot Ob qe + oH) he eb Z
fat’ 4
 
3 | a)
x K aor
 
x oy ye a ‘1
25 omy 1 ey a a ee My,
a ' 0-0830, 4A.
Ho 39 6-202%y 0.0039)
= oBS4 = ee
0.0854,
5 O3sse —'* od
0.0408
go, OUbom Ma ag) 2a
Le woe 3g
5 =
 
 
‘i
x ;
42 a) =o 3035 + (ods (010854) 40-4 )LO* © Petes)
21
bon BY “BER He Corue foet) |
ah
gat) = 0302+ to-4) (or 0320) + (04) 4H) (0-089)
ype "Wis Gl igs
Sh Pula tot Dy
ae ak
=OZlec: he
Find $230) fim Here Follausing) toile:
YMC GLE 0 ag “gg Me
Yo 95 FOS 1-39 9.03 tar B46
by uring, Gauss Backward diHerehde! \yindla’
Given tak, Fy) * aie “ Is
By uvtng gauss Rackwand. ditt forritile.
ule
  
 
mW oq ‘ q a>
BC yA 7
8605
id he
yw
4 4.03
fs
yet Od '
yold-46-
\ v+tt i
Hy = Yor veg +t Oey 4 Uw EAD y
PA | BI _
boy Say PLUFDLU-RLVALYY f
a bss dl i oe Paty LWA) W-2)WW-32)UHY s
“1 a Fe Ag
Ve 236-23, { y a at
——t = FB og. .
OdFLY) = N02 +f Co.2)(1-99) + COR ORD ous ye
\
 
wh LOR G2RCP2-2) (e241)
ic Ve we ) (6) +
le ced
© Gos {ca2h ~N(-0-2) Coa-s) 0a ty
“Weary
 
20 5% 30 as) uo us... Gams forwand -)
i :
“T3S4 Bar vay 2e0 23) 204
 
yuank Bee) yh a>
qe 6
Wd 7
ne. Wo-ZT i :
2 th zm Po “1
O84, : (
 
FLY) = Yo U4 Yo SRL FD £9 2-QUB (ay
al
=A =) ay, |
LLY) (U-3y LUE) May 2602) aD 0- -4)tW41) oo
Sh ey ee og
a
= petenotan stoi eo (0-6) 00-1) (o> etl)
ol. Sa gar ee a
  
CO} iy aq fr 4
+ 6) bo, eee?) em ‘oa eee.
a igs) * eo a |
Stealing 's Leimudar ayy ie. bea
4 es x f
Poe “AL Cee GE O08 1 ale
 
 
eG ee a Reel] Bo |
aA
Tao,pessel’s Ftmula
[Flot oy Ate OH, tL ay, +L lly, +aly,) ob Lage)
rind 40e vale OF 100) ok a=0-0% tom eu follocg
gable ueing | bessel's Fotmmuta.
pA % ar ad) et P45
0) 91023 a
F 0 “qxoottrs oO: a
Ro en 009%F 4,090) 90001
005 Ol ooo as soy | 70-000
poor ontoae onal, < 20-000{ ~9-000] “44
(bos eR otnat | Quo east Ye, 14
foros OY, WNT Sth 4
| Given Mook t9. fend, es a :
lestmate. FID, ok te eft ae by using betel
er
20026 HH. |o. +g 5
[e oor = [0 Cool +o)+t ¢ o1paet) st 0/0001 +0)
« s Laer ya. er]
7 or
sg ‘5 Syumula : 3
 
 
oes :
o28¢
orelbo 0-048, 4
O336  o-0NR
   
be tag OTS, ogy TOATR |) 4 y Jeo .
18 gaygg VISE : ay, ite oh oa :
1-5 6¢0 Oren =yo wl atte wot
20 0 as
i
seb el
ak lensar one id UBMs boye) 840) |
= &8¢0
ex ley x Ol, gr
 
g pe
Wy * }