Вопросы приближения функций. Литовка Ю.В - 3 стр.

UptoLike

Jbk
<<?>?GB?
<hagbdgh\_gb_ \uqbkebl_evguo fZrbg hagZf_gh\Zeh [hevrhc kdZqhd \jZa\blbb lhqguo b l_ogbq_kdbo gZmd < j_amevlZl_ ihy\e_gby W<F k
ijh]jZffguf mijZ\e_gb_f hkms_kl\beZkv \hafh`ghklv m\_ebqblv kdhjhklv jZkq_lh\ hl  hi_jZpbb \k_dmg^m ijb jmqghfkq_l_^h 
hi_jZpbc \
k_dmg^m gZ kh\j_f_gguo W<F Ihy\e_gb_ dZq_kl\_ggh gh\uo \hafh`ghkl_c \ k\yab k kha^Zgb_f \uqbkebl_evghc l_ogbdb bgh]^Z kjZ\gb\Z_lky k
ijhfure_gghc j_\hexpb_c GZ k\_l ihy\behkv gh\h_ ihgylb_ fZl_fZlbq_kdbc wdki_jbf_gl dhlhjuc kihfhsvx jZkq_lh\ iha\hey_l h[gZjm`blvb
ij_^kdZaZlv^Z`_jZg__g_gZ[ex^Z\rb_kyy\e_gbyDjZ_m]hevgufdZfg_f\wlhfijhp_kk_y\ey_lkyijhp_kkfZl_fZlbaZpbbjZaebqguogZmdhlobfbb
wdhghfbdb[bheh]bbwdheh]bb^hf_^bpbgub ikboheh]bbkmlvdhlhjhckhklhbl \ ihkljh_gbbfZl_fZlbq_kdbofh^_e_cj_Zevguoijhp_kkh\by\e_gbc
>eyihemq_gby\hafh`ghklbbkke_^h\Zlv fZl_fZlbq_kdb_fh^_ebgZW<Fg_h[oh^bfuqbke_ggu_f_lh^uj_r_gbyihklZ\e_gguoaZ^Zqiha\heyxsb_
ihemqZlvj_amevlZlk aZ^Zgghclhqghklvxb\ijb_fe_fu_ kjhdb
< ijZdlbq_kdbo jZkq_lZo g_j_^dh bkihevamxlky nmgdpbbg_ihkj_^kl\_ggh_ \uqbke_gb_dhlhjuo ih jZaebqgufijbqbgZf aZljm^g_ghGZb[he__
lbibqguke_^mxsb_kblmZpbb
 nmgdpby I[ aZ^ZgZ lZ[ebp_c k\hbo agZq_gbc \
L
I[
L
 L   « Q Z\uqbke_gb_ g_h[oh^bfh ijhba\_klb \lhqd_ [ g_ kh\iZ^Zxs_c k
lZ[ebqgufb
 \uqbke_gb_ agZq_gby nmgdpbb I[ k\yaZgh k ijh\_^_gb_f keh`guo jZkq_lh\ b lj_[m_l agZqbl_evguo aZljZl fZrbggh]h \j_f_gb kblmZpby
fh`_l[ulvmkm]m[e_gZg_h[oh^bfhklvxfgh]hdjZlgh]h\uqbke_gbynmgdpbb I
 ijb aZ^Zgghf agZq_gbb [ agZq_gb_ I[ fh`_l [ulv gZc^_gh lhevdh ih j_amevlZlZf wdki_jbf_glZ lZdhc f_lh^ \uqbke_gbc ^ey
\uqbkebl_evguoZe]hjblfh\qZklh[u\Z_lg_ij b _fe_f
<hagbdrZyijh[e_fZfh`_l[ulvj_r_gZke_^mxsbfh[jZahfnmgdpbyI[ijb[eb`_gghaZf_gy_lkygh\hcnmgdpb_cJ[fZehhlebqZxs_ckyhl
agZq_gbcI[gZfgh`_kl\_lhq_d[
L
L « QIhke_wlhcaZf_guagZq_gby n mgdpbbJ[k hij_^_e_gghcih]j_rghklvxijbgbfZxlaZagZq_gby
bkoh^ghcnmgdpbbI[ dhg_qghagZq_gbyJ[ ^h e` gu \uqbkeylvky[ukljhb gZ^_`gh
>Zggu_eZ[hjZlhjgu_jZ[hluij_^gZagZq_gu^eyaZdj_ie_gbym klm^_glh\gZ\udh\\ ijbf_g_gbbqbke_gguof_lh^h\ijb[eb`_gbynmgdpbc
EZ[hjZlhjgZyjZ[hlZ
F?LH>UBGL?JIHEYPBB
P_evijbh[j _l_gb_gZ\udh\ijbf_g_gbyZe]hjblfh\ bgl_jihey pbblZ[ebqghcnmgdpbb
AZ^Zgb_ijhba\_klbqbke_ggh_ j_r_gb_ gZ W<FaZ^Zqb bgl_jiheypbb lZ[ebqghcnmgdpbbk p_evxgZoh`^_gby__ agZq_gby^eyaZ^Zggh]hagZq_gby
Zj]mf_glZ
F_lh^bdZj_r_gby
Imklv\lhqdZo [
 [
 « [
Q
ijbgZ^e_`Zsbo hlj_adm>D E@ a Z^ZgZ lZ[ebpZ agZq_gbc nmgdpbbI[ AZ^ZqZ bgl_jiheypbb khklhbl \ hij_^_e_gbb
agZq_gbynmgdpbbI ^eyg_dhlhjh]hagZq_gby[ lZdh]hqlh[
[ [
Q
b [ z [
L
L «Q Lhqdb[
L
gZau\ZxlkymaeZfbbgl_jiheypbb
>eyj_r_gbyaZ^Zqbbgl_jiheypbb kljhblkygh\ZynmgdpbyJ[]jZnbddhlhjhcijhoh^blq_j_aaZ^ Zg
gu_lhqdbl_J[
L
\
L
L  «Q jbk
Bkoh^y ba m keh\bc aZ^Zqb fh`gh ihkljhblv [_kdhg_qgh_ fgh`_kl\hbgl_jihebjmxsbo nmgdpbc GZ
ijZdlbd_nmgdpbxJ \u[bjZxlba^hklZlhqghmadh]hdeZkkZnmgdpbc]ZjZglbjmxs_]h_^bgkl\_gghklv \u
[hjZ
GZb[he__ ijhkluf ihegh bkke_^h\Zgguf b rbjhdh jZkijhkljZg_gguf gZ ijZdlbd_ y\ey_lky
kemqZc bgl_jihebjh\Zgby Ze]_[jZbq_kdbfb fgh]hqe_gZfb \b^Z
¦
M
Q
N
N
N
Q
[
D
[
3
m^h\e_l\hjyxsbfb
mkeh\bx3
Q
[
L
\
L
L«Q
H^ghcbanhjfaZibkbbgl_jiheypbhggh]hfgh]hqe_gZy\ey_lkyfgh]hqe_gEZ]jZg`Z
\
\J[
[
[
Q
[

[