More Delphi Basics | Part 2 | Built in Math Functions and Procedures

[@lancemarchetti8673]

Nice!

[@zenkocylallysithelo937]

How do i round off a real number or any other number to certain decimal values?

[@MrLongITandCAT]

You should use the RoundTo function. Like this:
rNum := RoundTo( 22/7 , -2 )
The -2 after the comma means to 2 decimal places, -1 would be to 1 decimal place, -3 to three decimal places, and so on. But you will need to add Math at the top under Uses

[@toi_za4372]

I am trying to do the Inc procedure but with real variables
It does not seem to work
Please hel0

[@MrLongITandCAT]

Inc only works with ordinal types like integers. real variables are not ordinal. You can do this instead:
rNum := rNum + 1 ;

[@ramzamthel8014]

thanks

[@Killerbeast3960]

Why must we have a rInput variable ?

[@MrLongITandCAT]

Which aspect are you referring too?

[@Killerbeast3960]

@@MrLongITandCAT No worry sir I have figured it out

[@8legs_gaming510]

:)