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Summary rtt prakties notas

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Vir my matriek eind eksamen in 2022 het ek met 'n 80% geslaag. Ek het diep 80% gekry vir elke praktiese toets asook eksamens. September eksamen het ek 'n 86% bereik met prakties. Hierdie notas is 'n basiese samevatting van al die jare se leerwerk. Dit is noodsaaklik om tog deur jou handboek te gaan...

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  • November 29, 2022
  • 10
  • 2022/2023
  • Summary
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2  reviews

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By: notasvirjou • 10 months ago

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By: dirkaerasmusde • 1 year ago

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anriswart
Rtt Prakties
Excel
Funksies:
=sum()  som Tyd: trek tyd af
=average()  gemiddeld  skakel om na number
=max()  maksimum  maal 24 om dag na tyd te
=min()  minimum kry

=large()  grootste nde getal  jare deel 365

=small()  kleinste nde getal  maande deel 30

=mode()  kom die meeste voor
=median()  middelste waarde
=count()  tel alle waardes met getalle in
=counta()  tel alle waardes
=countblank()  tel alle leë selle
=power()  tot die mag bv. 32
=rand()  “random” getal tussen 0 en 1
=randbetween()  “random” getal tussen gespesifiseerde getalle
=round()  rond getal tot die naaste heelgetal
=rounddown()  rond getal afwaarts bv. Rounddown(4.567,2) = 4.56
=roundup()  rond getal opwaarts bv. Roundup(4.567,2) =4.57
=int()  rond ‘n getal af tot die naaste heelgetal
=trunc()  verwyder die breukdeel van die getal
=day()  dag tussen 1 en 31
=month()  maand tussen 1 en 12
=year()
=days()  die hoeveelheid dae tussen 2 datums
=date()  datum
=today()  huidige datum
=hour()  uur tussen 1 en 23
=minute()  minute tussen 1 en 59
=second()  sekondes tussen 1 en 59
=time()

, =countif()  tel slegs waardes volgens kriteria
=sumif()  tel slegs getalle saam volgens kriteria
=countifs()  tel slegs waardes volgens kriteria’s
=sumifs()  tel slegs getalle saam volgens kriteria
Wildcard  ‘n plekhouer wat ‘n karakter of ‘n series karakters kan voorstel
* leë string – enige nommer of karakter

?  een presiese karakter
*note gebruik by countif & sumif


=if()  dit laat jou toe om logiese vergelykings te tref tussen 'n waarde en wat
jy verwag
=If(voorwaarde, waar, vals)
Nexted if if binne ‘n if
And  multiple voorwaardes – albei moet waar wees
Not  invert kriteria – true – false
Or  een moet waar wees


=vlookup()  Vertikaal – bo na onder
=hlookup()  Horisontaal – links na regs *onthou absolute selverwysing
$ of F4
True  approximate match
False  exact match


Text Functions:
Concatenate  kombineer stringe
Len  bepaal uit hoeveel karakters string bestaan
Upper  verander na hoofletters
Lower  verander na kleinletters
Left  onttrek linkerkantste N karakters
Right  onttrek regterkantste N karakters
Mid  onttrek N karakters van Mde posisie
Find  bepaal die eerste posisie van ‘n substring
Value  skakel ‘n string na ‘n getal

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