# Extension:BCmath/Ordbok

This page is a translated version of the page Extension:BCmath/Glossary and the translation is 23% complete.
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Glossary for BCmath is a list of core terms and concepts for bcmath, or arbitrary-precision arithmetic.

## Termer og konsepter

Vilkårlig presisjon
When calculations are not limited by specific register sizes it is referred to as arbitrary precision.
Uendelig (∞) (∞)
Infinite numbers are valid numbers that are represented with a particular Unicode symbol, the infinity (U+221E) codepoint.
An infinite number can have a sign, both a plus infinity (+∞) and a minus infinity (-∞).
NaN (nan)
Not-a-Number er verdien til en kalkulering som ikke har noen gyldig representasjon som et nummer. It is called `nan` internally.
A NaN can have a payload that further clarify what it is or represents.
Operasjon
Numbers are combined they are said to be operands to an operation.
Operations and operands can have their own names, like addition has addend and augend.
Nyttelast
Payloads might be inspected in the console, but will otherwise be silently forgotten.
Scale (scale)
The scale is how the number is shifted to process it efficiently. It is given as the argument `scale` to most operations.
The BCmath extension tries to estimate the scale factor if it is missing.
Selv (self)
The actual instance, the “self”, in this case holding a number. It is called `self` internally.

## Operations

sub
Trekk fra subtrahenden fra minuenden.
mul
Multiply the multiplicator with multiplier.
div
Divide the divisor from dividend
mod
Modulus the divisor from dividend.
pow
Power the base to exponent.
powmod
Power the base to exponent and then modulus divisor.
sqrt
Square root of the operand.
eq
Is left side equal to right side.
lt
Is left side less than right side.
le
Is left side less than or equal to right side.
{{anchor|gt|greater-than} gt
Is left side greater than right side.
ge
Is left side greater than or equal to right side.