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Mathematics and compare-operators,

The most important operator is the =-operator.
It places the value on its right to the value on its left.
Example:
number=2

Mathematical-operators

A + B	add
A - B	Subtracks
A * B	Multiplies
A / B	Divides
A ^ B	A raised to the Bth power
-A	negation, positive becomes negative and negative becomes positive
A MOD B	rest of A/B
A \ B	The quotient (whole number) of a A/B

compare-operators
The result of a comparison has always the value TRUE or FALSE.

=	equals
<	smaller then
<=	smaller or equal then
<>	different then
>	larger then
>=	larger or equal then

Logic-operators
They combine the results of comparisons.

C1 AND C2	The comparisons must both be TRUE, so AND can give TRUE.
C1 OR C2	1 of the comparisons must be true, so OR gives TRUE
NOT C	The result of the comparison is reversed. True become FALSE.

Concatenate operator

To put strings together, we use the operator &.

street="somestreet"
streetnr="52"

completeaddress= street & streetnr

 

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