Difference between revisions of "Recital Operators"

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==Recital Operators==
 
==Recital Operators==
 
===Assignment Operators===
 
===Assignment Operators===
 +
Values are assigned to memory variables using the the equals = operator or the inline assignment [[Inline Assignment|:=]] operator.
 +
 +
<code lang="recital">
 +
cVAR1 = 'newer value'
 +
cVAR1 := 'newest value'
 +
</code>
 +
 +
Note that the [[STORE|store]] command can also be used to assign valuesand can operate on more than one memory variable in a single command.
 +
 +
<code lang="recital">
 +
store 'new value' to cVAR1, cVAR2
 +
</code>
 +
 
===Arithmetic Operators===
 
===Arithmetic Operators===
 
Recital supports the use of the following Arithmetic Operators:
 
Recital supports the use of the following Arithmetic Operators:

Revision as of 13:19, 6 November 2009

Recital Operators

Assignment Operators

Values are assigned to memory variables using the the equals = operator or the inline assignment := operator.

cVAR1 = 'newer value'
cVAR1 := 'newest value'

Note that the store command can also be used to assign valuesand can operate on more than one memory variable in a single command.

store 'new value' to cVAR1, cVAR2

Arithmetic Operators

Recital supports the use of the following Arithmetic Operators:


Operator Operation Precedence
() Parentheses 1
** Exponentiation 2
* Multiplication 3
/ Division 3
% Modulus/Remainder 3
+ Addition 4
- Subtraction 4


When dealing with Date data types, the operators work as follows:


Operator Operation
+ <expD> + <expN> returns a date plus the number of days specified in <expN>.
- Returns the interval between the two dates as a number of days.


Example

? 2*3^2
        18
? 2*25%7
      1.00
? date() + 30 - date()
        30


Comparison Operators

Increment and Decrement Operators

String Concatenation Operator

When dealing with string data types, the + and - operators perform the following concatenation operations:

Operator Operation
+ Concatenate the right hand string to the end of the left hand string.
- Concatenate the right hand string to the end of the left hand string after trimming the left hand string of trailing spaces.

Example

? [Hello] + [ ] + [ World]
Hello World
? [Hello     ] - [ World]
Hello World

String Search Operator

String Substitution Operator

Execution Operator

Concatenation of Strings and Other Data Types

Summary