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Numeric Operations
Part:
1
2
(Continued from previous part...)
Double Floating Number Operations
Double floating number operations are mathematical operations that:
- Operates on two double floating number operands. If an operand is not a double floating number,
it will be converted into a double floating number.
- Produces a double floating number by applying the mathematical operation specified by the operator.
There are 5 double floating number operations supported in VB:
- Addition (+): Mathematical sum of both operands.
- Subtraction (-): First operand subtracted by the second operand.
- Multiplication (*): First operand multiplied by the second operand.
- Division (/): First operand divided by the second operand.
- Exponentiation (^) - First operand raised to the power of the second operand.
To show you how double floating number operations work, I wrote the following script, floating_operation.html:
<html>
<body>
<!-- float_operation.html
Copyright (c) 2006 by Dr. Herong Yang. http://www.herongyang.com/
-->
<pre>
<script language="vbscript">
document.writeln(3.333e200 + 0.111e200)
document.writeln(1.0e0 - 1.0e20)
document.writeln(11.0 * 1.0e20)
document.writeln(20.0e20 / 3.0e0)
document.writeln(3 ^ 40)
</script>
</pre>
</body>
</html>
Here is the output:
3.444E+200
-1E+20
1.1E+21
6.66666666666667E+20
1.21576654590569E+19
No surprises in the output.
Numeric Operations on Other Data Types
VB does support numeric operations on currency data type. But I don't know exactly how they work.
There seems to be no numeric operations available on date, Boolean, and string data types.
Conclusions
- VB supports 6 numeric operations on integers.
- The whole number division operator sign is (\).
- VB supports 5 numeric operations on floating numbers.
Part:
1
2
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