How to Round Up a Fraction to Its Integral Ceiling in BASIC (45686)
The information in this article applies to:
- Microsoft QuickBASIC Compiler for the Apple Macintosh 1.0
- Microsoft BASIC Interpreter for Apple Macintosh 1.0
- Microsoft BASIC Interpreter for Apple Macintosh 1.01
- Microsoft BASIC Interpreter for Apple Macintosh 2.0
- Microsoft BASIC Interpreter for Apple Macintosh 2.1
- Microsoft BASIC Interpreter for Apple Macintosh 3.0
- Microsoft QuickBASIC 1.0
- Microsoft QuickBASIC 1.01
- Microsoft QuickBASIC 1.02
- Microsoft QuickBASIC 2.0
- Microsoft QuickBASIC 2.01
- Microsoft QuickBASIC 3.0
- Microsoft QuickBASIC 4.0
- Microsoft QuickBASIC 4.0b
- Microsoft QuickBASIC 4.5
- Microsoft BASIC Compiler
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0b
- Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.0
- Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.1
- Microsoft GW-BASIC 3.2
- Microsoft GW-BASIC 3.22
- Microsoft GW-BASIC 3.23
This article was previously published under Q45686 SUMMARY
The mathematical ceiling function (which rounds up to the next higher
integral value for any fraction) is not built into the BASIC language.
To compute the ceiling, use the following function:
DEF FNceil#(x#) = -INT(-x#)
x# = 50.0001
PRINT FNceil#(x#) ' Prints 51
This function is equivalent to the ceil() function in the C language.
This function works in the following products:
- Microsoft QuickBASIC Version 1.00 for the Macintosh
- Microsoft BASIC Compiler Version 1.00 for the Macintosh
- Microsoft BASIC Interpreter Versions 1.00, 1.01, 2.00, 2.10, and
3.00 for the Macintosh
- Microsoft QuickBASIC Compiler Versions 1.00, 1.01, 1.02, 2.00,
2.01, 3.00, 4.00, 4.00b, 4.50 for the IBM PC
- Microsoft BASIC Compiler Versions 5.35 and 5.36 for MS-DOS
- Microsoft BASIC Compiler Versions 6.00 and 6.00b and Microsoft
BASIC PDS Version 7.00 for MS OS/2 and MS-DOS
- Microsoft GW-BASIC Interpreter Versions 3.20, 3.22, and 3.23 for
MS-DOS
Modification Type: | Minor | Last Reviewed: | 1/9/2003 |
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Keywords: | KB45686 |
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