Electronic spreadsheet system and methods for compiling a formul

Boots – shoes – and leggings

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

395700, 364974, 364973, 364DIG2, G06F 1730

Patent

active

054716128

ABSTRACT:
An electronic spreadsheet system of the present invention includes a Formula Evaluator having a preferred interface and methods for compiling spreadsheet formulas into native machine language for a target processor/coprocessor. Methods are provided for improved cell lookups, whereby a system memory address for a cell record may be compiled directly into the machine language sequence for a compiled formula. Additional methods are provided for simplifying error checking. The methods adapt NaN (IEEE format) values for encoding spreadsheet ERR and NA values, so that the on-chip logic of the coprocessor may be employed for correctly propagating ERR and NA values. Preferred auditing methodology is also described, which includes further modifying the format of NaN values so that a NaN encoding an ERR or NA also embeds the address of the originating cell (i.e., the first cell which first gave rise to the ERR or NA value).

REFERENCES:
patent: 4912657 (1990-03-01), Saxton et al.
patent: 5293615 (1994-03-01), Amada
Hassinen, Kari et al. "Structured Spreadsheet Calculation" IEEE Languages for Automation Workshop, pp. 129-133, 1988.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electronic spreadsheet system and methods for compiling a formul does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic spreadsheet system and methods for compiling a formul, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic spreadsheet system and methods for compiling a formul will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2020681

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.