mTECH 270

Visual Basic offers a rich assortment of built-in functions. The on-line help utility
will give you information on any or all of these functions and their use. Some
examples are:


Function                      Value Returned
Abs                              Absolute value of a number
Asc                              ASCII or ANSI code of a character
Chr                              Character corresponding to a given ASCII or ANSI code
Cos                              Cosine of an angle
Date                             Current date as a text string
Format                         Date or number converted to a text string
Left                              Selected left side of a text string
Len                              Number of characters in a text string
Mid                             Selected portion of a text string
Now                           Current time and date
Right                           Selected right end of a text string
Rnd                            Random number
Sin                             Sine of an angle
Sqr                            Square root of a number
Str                            Number converted to a text string
Time                         Current time as a text string
Timer                        Number of seconds elapsed since midnight
Val                            Numeric value of a given text string

ARITHETIC OPERATORS
 
Operator     Operation
^                   Exponentiation
* /                 Multiplication and division
\                    Integer division (truncates)
 %                 Mod Modulus
+ -                Addition and subutraction



CONCERTINATION

To concatentate two strings, use the & symbol or the + symbol: e.g
lblTime.Caption = "The current time is" & Format(Now, “hh:mm”)
txtSample.Text = "Hook this “ + “to this”


 COMPARISON OPERATORS

Operator        Comparison
>                     Greater than
<                     Less than
>=                   Greater than or equal to
<=                   Less than or equal to
=                     Equal to
<>                   Not equal to


LOGICAL OPERATORS

Operator          Operation
Not                   Logical not
And                  Logical and
Or                    Logical or