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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, indien ek enige iets gemis het. My notas bevat opsommings asook notas van excel, word, access en HTML. Hierdie notas is slegs die basiese goed wat ek self as leerder moes onthou. Onthou om soveel as moontlik vraestelle uit te werk. Hulle patroon volg elke jaar. Baie sterkte aan die Matrieks van hierdie jaar!

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Uploaded on
November 29, 2022
Number of pages
10
Written in
2022/2023
Type
Summary

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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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