Klaus, If I get familiar with B4XHelp Viewer as you suggested, do I need to download and install separately the B4X? I'm presently viewing the subs and variables video by Erel. I have completed 3 practice apps and have the B4A installed.
Here's a specific need for my first idea for an app: How do I write code to perform for example multiplication, division, square root and so on? I saw on the present video I'm watching that Erel performed addition with the code in part as:
Sub AppStart (Args() As String)
Dim Result As Int = Sum(10, 20)
Log("The result is: " & Result)
End Sub
Sub Sum(x As Int, Y As Int) As Int
.................................
.......................
Return X + Y 'Here the plus sign is obviously the addition performing character
'I'm wondering what the other characters for other mathematical
'performances might be
.......................