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SR260C_Dannish_090402.doc SIZE: 140x75mm SCALE 2:1
2009/4/15
-Da15-
[ n ]
STAT DEG
6.
[ 2ndF ] [Σ x
2
]
STAT DEG
241.
[ 2ndF ] [Σ x ]
STAT DEG
35.
[ x ]
STAT DEG
5.833333333
[ S ]
STAT DEG
2.714160398
[ 2ndF
] [ σ ]
STAT DEG
σ
2.477678125
Bemærk:
Stikprøvestandardafvigelsen
S er defineret som :
()
1n
n
x
x
2
2
Populationsstandardafvigelsen
σ er defineret som :
()
n
n
x
x
2
2
Det aritmetiske gennemsnit x er defineret som :
n
x
Hvis du vil slette en forkert indtastning, skal du trykke på [ DEL ].
PROGRAMMERING
Med din programmerbare videnskabelige lommeregner er
komplicerede, gentagne beregninger ikke længere tidskrævende og
besværlige. Du skal blot fortælle lommeregneren, hvad du vil have
gjort, på en måde, den kan forstå (du skal med andre ord
programmere den).
Lommeregneren kan opbavare én procedure med op til 40 trin. Disse
"trin" kan enten være egentlige handlingstrin (f.eks. matematiske
funktioner) eller tegn (f.eks. tal). Hver funktion tæller som ét trin.
Proceduren bevares også, når du slukker for lommeregneren. Du kan
have mere end én variabel i din beregning.
Lommeregneren lærer matematiske procedurer eller programmer i
program-mode (PGM). Tryk på [ 2ndF ] [ PGM ] for at sætte
lommeregneren i program-mode. PGM vises i displayet.
Nu kan du indtaste din procedure på samme måde, som hvis du blot
skulle foretage beregningen én gang – bortset fra, at du skal trykke på
[ 2ndF ] [ [X] ], inden du indtaster variabeldata. Du får dit første svar,
mens du stadig er i PGM-mode.
Bemærk: Hvis du trykker på [ 2ndF ] [ [X] ] efterfulgt af [
] eller
et tal og derefter [ EXP ], [ +/– ], [ ) ] eller [ CE ],
behandles såvel tallet som den første funktion efter
tallet som én variabel – de skrives ikke ind i
programmet som trin.
147


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