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Function
or procedure call
The
call of a procedure is an instruction, it can't
be in an expression. You only have to write the
procedure name and to give, if necessary, the arguments.
ProcedureName
ProcedureName2 Arg1, Arg2, ...
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Function call
You must call a function in an expression. This expression can be used for an affectation or for an argument.
For example, an affectation :
VariableName = term1 + term2 * Function1(Arg1, Arg2, ...)
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The function Function1 must return a variable
of the same type as the affected variable.
Here is a mathematical example : For a composed
function, f = g o h, that is f(x) = g(h(x)), you
have to write :
Function f (x as Float) as Float
Return g( h(x)) |
Here, the function f takes the variable x, evaluate
h(x) and then passes the result as an argument to
g. So, we calculate g( h(x)). |
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