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GeoBASIC Reference Manual 2.GeoBasic Constructs
TPS1100-Version 1.30 2-23
♦
The implicit precedence of the expression in the left column is shown in the
right column explicitly.
expression precedence made explicit
a + 3 * b a + (3*b)
a / b * c (a/b) * c
a ^ 3 ^ b a^(3^b)
i \ j \ k (i \ j) \ k
x or y and z x or (y and z)
x and y = z x and (y = z)
a * F( -b + 1) / 2 (a * ( F( (-b) + 1) ) ) / 2
where
F
is a function (see Section 2.7 on
Routines; this example is only included for completeness);
♦
Now we show some examples for the type conversion.
Expression value result type
7 / 3 2.33333333
1
Double
7 \ 3 2 Integer
7 mod 3 1 Integer
"Geo" + "BASIC" "GeoBASIC" String
2.5.1 Type Compatibility
Note that not all types of operands can be combined with all operations. The rules
are as follows.
2.5.1.1 Addition, subtraction, multiplication ( + , - , * ):
Both operands must be of a numeric type ( Integer , Double , or any of the
various specialities of
Double
). If both are of the same type, the result is also of
that type, otherwise it is of type
Double
.
Note The + operator is also used for string concatenation, see below.
1
The actual value depends on the hardware.