Atari ST300 User manual

]
l'
,/!IATAR
OPERATION
MANUAL
Model ST300
atarimuseum.nl

K.yr lnd.x (oi$lt )
CLEAR XEYS
6 Pow.ronky..............3
@ Poirlr oft k.y . . . . . . . . . . . . . . a
@ O..r .tt lry . . . . . . . . . . . . . . . !
@ C1... indicnor/O.tr t.y . . . . . 3
ET'TRY (EYS
E -tr l{umlric K.y3 . . . ..... ...... .
E) D.cimll Doint l.y . . . . . . . . . . .
O Expo.inti.l k y . . . . . . . . . . .
E sign ch..tF k.y ...... ......
ooE sEtEcltor{ xEYs
@
E
@/ a
lnv.rs.k.y(lNV).......... i
O8pl.y mod. k.yt . . . . . . . . 5
D.cim.l point $lsction k.y . . 5
o€!..., R.dim, e.di..r modt
k.y (OEG aAD GaAOI . . . . . 6 2a
a.ic lmi'uolor k yt
rinl;lriri 8.rictunciimkNi........ .,r
3 Plrc.nt l.y . . . . . . . . . . . . . 7t
6tr fro., clor. pft.nln.!6 k.yj
( ) . . . . . . . . . . . . . . . . . . . 7.a
Fr&tont.y ..............,9
Mix.d/imp.oFr lr.ction
cone.rionk.y.. -..,...... to
Mdnory plu3 k.y ......,...1023
A.crllm.moryk y......... rojg
Stor. m.frory lry .,,..,...ro:3
Ohpl.y/hd.p.nd.nt rl.mo.y
chrnrkoy .............. io
GD
o
E
E
atarimuseum.nl

o Sq.rare k.y ........... -.. 122s
6 Sqrare rcor key . - - - . . - , . . . 12Zs
@ Raisins povr,66 key - - . . - - - - - .rz.za
6 Multiple root key .......... 12-?6
@ E.ciproc.l ley
5 Cubic root key ............ 122a
- Pi key .
o Factorialk6y - - - - - - - - . - - - - .12ef'
@ ,/ 6 Sine/arc aine key . . . . . . . . . . 12.2.
@,/ej Cosio./Arc cosi.p key , , . . . . , 12,2.
@,/ Ej Tangent/arc t ngent key .....12,2.
@ N.rural log.rirhm k€y , . . . . . , 1224
6 Commd cxpo.rcnrialk6y ....12,25
@ Co.nmon log.rithm k?y , . . . . . 12,2.
6 Exponenti.lfunction k€y. -.., 1225
6 ,/ & S.x.s6im.l + decimal
conwrsionkey.... -..... -. 12,2s
L] Chrngenotatio.rkly..........7
@ ,7 .5 V.ri.ble Ehtry/v..iabte
corr..tionk6y ... -..,.. -. - 12.*
grmkey............ -... 12.30
Squarcsum ky ...... ..... 12.30
Number of d.r. key ........ 12,30
Mean key ........ , ...... i2,3t)
St.nd..d d.vi.tion of 3mple
k.v .. . ...... -.. . ...... i23o
Standard d.vi.tid por!lltion
p&mel.rley .-.......,.. t2_3o
Op€n. close Btatsticat ley . . . . t4 gl
E
E
6
5
atarimuseum.nl

1. Keyr
Pow, On, OFF and cl.r K.yt
5 Pd!, On X.y: To.ns the calcul.tor on o. c.
rranr caldlation wh.n the dLpliy 9@r @r a.
rom.rrcally tv A!romaric Pow€r Off Funcr'o.
All rsgkters e)(cept tho momory rogistor 6E
cloarcdwhon po-er is tumed on.
. Alro Powsr Off Function:
When th€ c.lculator isoot u*d tor atst lOmin.
ulB, th. displ.y ir .utomatically iurned off to
@ Po*.r OFf X.y: Turn5 ofi tfi. powlr suFply.
Thir &t'on only cleaB the displ.y 6g31er.
I s'80 ooly)
@ C1... All X.y: For cle.ring all rne sntri6 and
rerults, includi.g mernory cont nts, Oop.ost
this key before st.ding calcul.tion. { S-al
@ Cl..r lndic.io./Ch.. K.y: Whcn th. @ key
is Or.s*d iqhi atle.6ot n"gnumb.B, itc16.6
tho3e number iust.ntersd,
. When the @t) ksy ir pr$sd.fter $o E, E
E ,0, o. E key, or wh.n it is p..ssd twie
tucclssie.ly, it crea.s th. coitnls ofrllr.irllE
ercrpt the merhdy.
atarimuseum.nl

. B.!i.Gr ..d M.mdy Cl..r.d t'y E.ch K.y
I.,"",.""
,Jr o r
LAir., ch.n!'ng node,
@ - O lum.ric Keyr: Enter numbers.
E O.cim.lPoinl Koy: Enterr a cl.cimal point.
E Expon.nti.l K.y: Used to enrer eponenB.
Er.mpl.:35xtd'+ tr tr E tr tr 135'13)
E Sisn Ch..g. K.y: For chansing the sign (+ or
-) ol lhe di3plaved m.ntis$ and eponents.
@ lnr.rt. K.y: For p€dormins functio3 indicat,
ed sbow ths key3. Th6e functions are shown
wnh ffreriitr (') in the explannidi b.tow.
Errpl.: Sin I 0.5+ El E @ 6
atarimuseum.nl

El DirFl.y Mod. K.y: Or.n!$ th€
di3play mo&. TIE dilplay mo(b .ot.tei each
tiin! wh.n this ksy i3 eore$ed ft ,otlorr..
1 ......... Flo.tinoMod6
E 1 . scientific Exponenti.l Mode
trtrtrotr
trtrtr
tr@tr
tr
Sci.ntif ic ExporEnti.l
Mode........ x=0
lnd l0-D < lxKrOro
Expoiem: MtdtipL otS
M.nrisi: LB th.n l(trO
ln th. ,loatino mod€ lh. c.lculation r.3ults arc
1231t5670.
1.23456 0' Scientific
ro'o<lxl< 1016. . . ... . .... -
r0 ,<trl< ro eOi3pl.y
Display
x=oand to t<lxl< lo'o ......
atarimuseum.nl

ri' D-irnJ Point S.l.criqr K.y: Speciti$ $e
nombor of &cim.l digit! in th. m.nti$. o, rhe
d.cim.l c.lcul.tion l6utis. Oepr.s3ing $. O
- tr or tr k.yr.fterthkkcy3p.citicsrhe
numttr of rlecam.ldigi6.s fottowsl
@-E1...... 0d.cim.ldigit
@-O...... I d€cim.l digit
@ -E.. .... 7 d.cim.ldigits
@ 6 tr. . . . . . R.tG6 rhe ct€cim.t specific.rion
Exmpl.:
trtrtrtrtr
trtrtrtrr:l
@@trtr
(o-tr1
12345678
r2345.678
12346 'l digit (hcim.l
dilitt (hcim.lt2345.67a
'l Th. dirpl.y.d vrlu. ir .ound.d up wi$in rhe
rpecifi.d .rng., bot th. rtud c.tcutatio.r ,s.utt
is ,.t in d in rh..cist ..
!2 Th€ numtr. ir diQlry.d wirh t.ft iGtitic.rion.
ln rhii c$., 5 rLcih.t digiti -. 3Fcitild, but
only $. 8 mod 3ignitic.at di{rts i.! dipt.yed.
F.om the4th *cim.tdigit ls not di3pt.yed.
o D.t r/R.da.r/cr.di.nr iloA X?: For Ch.nt
'&raL Unit Coiyrnadi K.r: For coivirtins
lrigle v.luca to diff.rent unil! when uted wirh
atarimuseum.nl

a The relationship of units G:
2OOGBAo=tBOo=rRAo
- Chrng. Notaion X.y: Sci€ntific notatioo
caldlation.nd change not.tion opsration.
Errmple: (72.5x 10'o + 1.75x 1O'0)+(-4.7X
ro-rr ) = -r.579?872 x 103'?
Diiplay
otrtrEtr@trtrtr
trtrtrtrotr@tr
trtrtr8:IZEEtrE
tr
7.25 2r IEXP)
7.425 2r IEXP)
-4.7 - ll (EXP)
1.57978 32 (EXP)
-1-5797872
Bnic lNi.uctio.r Key3
fn E Tn E t:l B.!ic FJncrio. r.Y3: Used
,or basic ..ilhmetic calculalion. Press keys as
E'P..@nt K.y: U*d ior percentas., add'on and
di$ount calc!lationi,
. Press rhis key alter entering aumer c data to dis'
play 1,/100 of the input number.
Lr a Open, Clo!. ?.rcnrne3et K.yt: For per
lorming Frentheses calculationt where num'
beB and in(ructions stored in the register are
atarimuseum.nl

2x (3+4) = 14l tr]Emtr]t'l.-tfnt:l (l
1 + t(4-3.6i5) ltrtrtrtrEEt trEE
x0.8-61 x4.2 I trtrtrtr trtrtrtr Ettr
=-6.056 1trtrtr (-6.058)
. Ho{v€ve., !p to 15 consecutive @en p.r€ntheses
can b€ uied at o.le time.
Ex..nplc: 5X {{(... l{4+2)x 3}+8. .
L___l
Up to 15 parenthe.es
. Th€ O and E k.yi are Elways used togother.
lfoilher key k p6i€d €lone duingsn op€ntion,
rhe aot€nded rcruh c.nnot be obrained.
. The O key i3 efrective only wheo d.p.....d
immediately after a calcutatio.r i^rtruction.
. W!.n E L eftetiv., "0" will be dbpt.y.d.
Sp.cill parcnth€res indh.tor ( , Eppo$s on the
< Fr.ctio.d C.lorl.rioor >
It enter3 frsctiqt a.d c.lculrtss both mir.d .nd
imp.op.r fr.ctions. Affw.rs re given in mix.d fr.c,
GD F..rtio. X.y: lJs. it to lnter fhctim3 lor tbth
mix.d and improp€r tactions.
Wh.n sntering impropar llactions (A/g):
A {nume.6tor} + GD r B (deno.nin.ror}.
lryh€n ente.in! mix.d tretioni {A Brcl.
A(inteser)+ @ r B (numentof)+ @ +
C {d..oninator).
Fr6ction 2/3 is di.pl.yld as <<2J3>>. a.d 1.
2/5.s<<1-2)5>>.
atarimuseum.nl

The maximum dieiL tor th! improp.. f6crion5
are up to 6 digir. fo. rhe num.rato. and 3 digits
for the d.no.n in.tor, tot lline 8 digit!. Ttt€ mixed
tr&tions lre up to 3 digi6 for ..ch integ.r,
numerato. and d.no.nin.to. bor rh. tol.l must
be up to 7 digii..
@ key cfi coowrt lhe t!dt! ol the fractional
c.lculationi to th. &cim.l e!pr63io.i, ..d vice
rua. Howlwr, th. v.luc in tns memory, ev?n
after convening to lhe &im!|, i5 3tor€d in the
ti&ia6d .rpreslion.
Er.nph: c.lcuhG I 2/3 + 4 5/6 .nd conven
tho r.iult to ihe chcimsl e,@r€3sion.
E@E@E E
E@E@E] E
@
@
1-2)3.
5 _ 1r 2.
6.5
6_lr2_
tr
GD
tr
E]
atarimuseum.nl

a5'Mir.d/lmprQ.r Fnction Co6v..ti6 K.y
k conwrt! mixedtraction3 to improFr traction3,
rnd vic! Er5.. lt ch.nge! .lternativaly at e.ch
tims ei.n the koy i3 pr€s*d.
Exlnpl.: Enter lo/3and conlert to the mix.d
Display
E@ @B
@4sE lOr 3.
l0r 3.
E M.6o.y Ptut X.yr For .dding numbeB ro rh.
independent memory.
E R.c.ll M.mdy Kry: For recal,,ns the indspen
dent memory cont.n$.
E Std. M.mory Key: For storins the display
numbeu in the indepenchnt meino.y.
The lomer cotenBwill be ered.
E' Oitpl.y/lnep.nd.nt M.oory Ch.ns. K.y: For
erch.ngiog rhe displayed number with thecdr.
tents ot the independent memory or vace 93rs!.
atarimuseum.nl

Erlrd6 Urioi rh. lnd.p.ndot [rnory
Oi3play I Cont nt! ot
trtrtrE
trtrtr E
E
trtrtr8
tr8tr
Stor6 123
Adds 456
Storer 789
Cle.r
@
123.
123.
456.
570.
78S.
369.
780.
0.
0_
0
123
579
579
789
789
350
359
0
atarimuseum.nl

For d€t ih ol function calcul.rioG, rrft. to a!8
R ictioi c'lcul6rion!.
@ Snl. X.y ei 'ArcSan X.y
@ co.an K.y Ej .Arc C6ilr X.y
o T.llrnl x.y ai '&c T.qml l(.y
@ I{.t r.l @ Cdn.ndr
Lo!.ri6m K.y Lo$rirtm K.y
6 'Erpoomii.l 6 'Co.nmdr
Fuiciioo X.y Erpd.ntid r.y
o S(lt... X.y e) 'Squ... Rool K.y
6 RiclDro..l K.y 6 'C!Uc Aoot X.y
@ 'S.q.!ih.l + 6 'D..ih.l +
D.cim.l S.r.r.. i.n.l
Conr.uio X.y CoN.rtioi K.y
@ R.iin! to Por.r 5 irqhipl. Root l(.r
B V{,i.u. Enny (SUMI
E .V.i.U. Corr..tioi IOLT) |(.y
5 'rrr.y 6 rrx'I.y
a ';K.y
@ Opan. cloac aiaillilcll k y
atarimuseum.nl

2. Dirol.t, lndic.to6
t?l.l 55:9
STAT :Sratiltic Mod.
O€G :O€gr€q Mod.
RAO :Radi.n Mod.
GRAD :c.adi. Mod.
I ) :calcurstion in Pirentho3os
atarimuseum.nl

3. ilodes
[email protected] in E.ch Mod.
(oEc)
Cd.. atul. P,6nth.*! ( I(151
F.*ri@d clrcur.rid
atarimuseum.nl

4. Celculalion Procedur.
The calcul.tio. proc.dure p.jority is automatically
dgiemined by $e colculator- Th i. mEns lhat alge'
braic expre$ions can b. .ncred iust 6 they arc
wnnen. The @lcullrion p.iority is presented as fo.
Hid' . O.e.vari.ble tunction
. Glcul.tion in { )
. J, V-
5-.4rX7+3XO.5c6oo
U IIIU
I ll l-or
I I L--a-J
l-o-l I
l"l
Diiphy
orde r
Mod.: DEG
El tr
E@
tr
trE
gGl
EE@
EE@
tr
5.)
16.)....._...o
0.3125t.........@
2.1875) . . ... . . . . o
3.).... - .
0.5).........
0.5).........@
4.3088203).........@
atarimuseum.nl

During .ctu.l calctll.tion, low.r prioriry c.lcu l.tione
.r. stof.d in fia ttak m.mory .nd th.n prE !..d
innm. Thi. 3t!ck m.rnory c..r ttor. uo ro 6 l.v.l,
Er..npl.: I +2x Gin3O" +5x 2) .
LJ(J r-------r !_J
t.vrt. o@ o (tr
5. crlculatio.r Ranga
A m.ximum ol I digit! in lh. m.oti33., or I
digil! in th. m.ntiisa with 2 dioi$ in the !&o.renl,
ctn b. entered o, dhpr.y.d. A neg.tive ralue b in-
dicat d by.ddin9.minus {-)3ign. Th. c.lcui.tion
r.ng. i3 &lin.d ar lollo.,e:
atarimuseum.nl

. lf th! rGult ol a c.lcul.tion i3 dlt of th. .bov.
ranl.i .. oror occv6.
6. Hor to Parto.rn Sl,ti.ticel Calcul.tion3
CLrninr Al B.ri.r.n g.lo.. C.t@lttiqr
Enr.rina Sr.tric.l O.r.
Pr.es rh. @ .nd @ k.y3 to r.r to the it tiirical
mo.L. Thir will.le., all tu rid cmm..(k.nd.ll
regiit re.xcaDt lh€ m3mo.y ..igsi.r.
Ar th! cault ol stati3tic.l catculatioG .rs .ccu-
mul.t d in lhe .r.ri.tic.l c.lculation memory,3tatB.
tic.l c.lcul.ioft cm be p..fomed again bv exning
to another mode .nd then re3et the c.lculrtor tor
rh. rtrti3tic.l c.lculstidr mo(h.
Example 1: [_1] @ bl@ Llo
Exampl.2: EE] El @ c [i] @ Elo o
Er.mple 3: ( Ilt Llljl ) E@,
Op.r.ridl! llor Ar.ibu.
Op€rations oot .v.ilable ... I
. Wh.n rh. nrrmb.r of cllcularion nesting l€v€ls
atarimuseum.nl

Corr.criq Snriii(d Dnr
E,(.mplel:E@E@E@E@
ie-r
Er.mpls 2:O@E@,E@ E@ Ei
,!e--
Ex.mplc 3:E@E6rE@O@ E
.4-
Er,rnpl. 4:E E E@6 p.925)
8@A { 2.1)
outpui ot sr.tinic.l c{.ul.tid Ret|t
o& r'J!iliir*'r
@E NJL
@6@ vn-1"j ri-ir':an-rr
i_t
@E@ v'- j ui-ir':rn
i-1
Er
>r,
i6 - k.y (number ot d.ti).
atarimuseum.nl

7. Eraoaa
Th. c.lculator will ov.rtlow i. the followine i..
it..c..; lunh.r c.ldll.tims will .or b. podrihie 6
the c.lcul.tor will b. Gllctronic.lly lo.kedl
I . Wh.n th. crlcul.tioo rliuh b oirt id. th! fottolr-
x.o.r x r04 <lxl€.9000s00 x ros
xr C.lcll.rioo r.iult
2. \{h.n th. cont ntr of th. m€oo.y .r. ot id.
ih. follodne range:
x{,r x l0-, <lrl<9.ss9ss99 x to,
x: M.mory co.rt nt!
(Th. dn stor.d b6to.! th. owrflow .rq i5
3. Wh.. num!.R .r. intor€d ouBi(l. rh. tollowing
.6ng..nd. b6'c tunction k.y { El , El , tr .
O l is d.pr.$.d.
,(.o,r x 104 <lxl<9.99€o€o9 x lo,
4. Wh.n . i 0 ldiviiio. with 0.s. divi3or, b per
5. Wtt.o d.r. .xc.€6 the r.nF of rny tu,Etion or
.i.tiriicll c.lc!l.tion.
6. ln th.3t tisticil cJcll.tio. mod., it on-r bcrl-
cul.t d with o. y oi. d.n,
(l l To rind,(,on.nd oi-r when n=O.
P) lft.n n < 0 o.. > l0ro
7. lvt'.n th. num!.. ol op.ratro. 3torud 'n th. c.l.
dJl.to. &rjng p.r.nth.s& .nd .rithm.tic c-.1-
orlltion axcaad 6 lorcls,
8. Wh.n mo.. th.o 15 oo€n o.r.nfi...!.r. u3.d.t
atarimuseum.nl