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- Assigning a numeric variable
- Thousand separator
- Operations that can be performed with a numeric type
- Operation involving a numeric type
- Limit
- Currency/Numeric comparison
Numeric (Type of variable) In french: Numérique (Type de variable)
The numeric type is used to contain integer or decimal numbers by specifying if necessary: - the number of digits in the integer part.
- the number of digits in the integer part and in the decimal part.
A numeric variable can be used: - to declare a simple variable.
- as element of array.
- as element of composite variable.
- as element of structure.
- as element of class.
A Variant variable can contain a numeric.
Counter is numeric
Counter is numeric (*)
Counter is numeric (5,7)
num1 is numeric (2,15)
num2 is numeric (2,15)
num1 = 0n10.000000000000033
num2 = 0n10.000000000000055
Info(num1+num2)
Syntax
Declaring a numeric type (default number of digits: 32 digits for the integer part and 6 digits for the decimal part) Hide the details
<Variable name> is numeric
<Name of variable 1>, <Name of variable 2> are numeric
<Variable name>: Name of the variable to declare. This variable will be a numeric variable with 32 digits for the integer part and 6 digits for the decimal part.
Declaring a numeric type (automatic number of digits) Hide the details
<Variable name> is numeric (*)
<Name of variable 1>, <Name of variable 2> are numeric (*)
<Variable name>: Name of the variable to declare. (*) means that the format of the variable is automatically adapted to the value.
Declaring a numeric type while specifying the integer part Hide the details
<Variable name> is numeric (<Integer part>)
<Name of variable 1>, <Name of variable 2> are numeric (<Integer part>)
<Variable name>: Name of the variable to declare. <Integer part>: Number of digits in the integer part. A numeric can contain up to 38 significant digits.
Declaring a numeric type while specifying the integer part and the decimal part Hide the details
<Variable name> is numeric (<Integer part>, <Decimal part>)
<Name of variable 1>, <Name of variable 2> are numeric (<Integer part>, <Decimal part>)
<Variable name>: Name of the variable to declare. <Integer part>: Number of digits in the integer part. A numeric can contain up to 38 significant digits. <Decimal part>: Number of digits in the decimal part. A numeric can contain up to 38 significant digits. Remarks Assigning a numeric variable When assigning a value (value entered directly, given by a function, etc.) to a numeric value, this value is automatically converted into real by the compiler. For example:
num1 is numeric
num1 = 1234567890123456789123456789
Trace(num1) // num1 does not contain the correct value
num2 is numeric
num2 = 1234567890123456789.0
Trace(num2) // num2 does not contain the correct value
To force the assignment of a numeric type, use 0n before the value. For example:
num1 is numeric
num1 = 0n1234567890123456789123456789
Trace(num1) // num1 contains the correct value
num2 is numeric
num2 = 0n1234567890123456789.0
Trace(num2) // num2 contains the correct value
You can use spaces and underscore characters to separate thousands in numbers. For example:
num1 is numeric
num1 = 123 456.478
num2 is numeric
num2 = 0n 47 568 014.478
num3 is numeric
num3 = 7_014.478
Operations that can be performed with a numeric type The following operations can be performed with numeric variables: - Comparison operations: ability to use the =, <>, <, <=, >, >= operators
- Arithmetic operations: Addition (+), negation (-), subtraction (-), multiplication (-), division (/), modulus.
- Combined operations: ++, --,+=, -=
Operation involving a numeric type During an operation that involves a numeric variable, all the calculations are performed in the format of the numeric values handled. For example, during an operation between a numeric and a real, the real is converted into numeric to perform the operation. A numeric type can have 38 significant digits. The "highest" cases ((0,38) or (1,37) for example) can produce calculations errors caused by overflows. The "lowest" cases ((38,0) or (37,1) for example) can produce calculation errors caused by loss of decimal values. Currency/Numeric comparison The Currency type is faster for the calculations that do not require a precision greater than 24 significant digits (up to 17 digits for the integer part and up to 6 digits for the decimal part).
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