Android Question I need help with power arithmetic (2^3)

[KIM jihoon]

Visual Basic: 2^3=8
b4a ?

thanks for the help

 

[emexes]

although if you're working with integers, probably simpler (and faster?) to just multiply it out manually ?

 

[emexes]

Dim P As Int = 1
For E = 1 To 3
    P = P * 2    'or P + P  ? 
Next

or if it's always base-2 then even better:

P = Bit.ShiftLeft(1, 3)    'value of bit position 3 ie 2 ^ 3

 

[KIM jihoon]

View attachment 138214

although if you're working with integers, probably simpler (and faster?) to just multiply it out manually ?

thank you very much !!!

 

[emexes]

thank you very much !!!

If you're doing binary bit stuff, like pulling bitfields out of an Int, or setting or clearing bits, then check out:

https://www.b4x.com/b4j/help/core.html#bit

and it often makes things clearer if number literals are in hexadecimal eg 0xF0 rather than in decimal eg 240

 

[KIM jihoon]

thank you very much
Power(2, 3)
solved