I don't believe for a second that Harold Camping has reduced God to an equation. He is certain that the Lord will return on Saturday, May 21 at 6pm EST.
But the Lord can come back at any time He chooses. At my church we get out of Mass at 6. If He should decide to come back then, wouldn't it be great to partake of His Body with the communion of all the Saints and then be taken to his presence?
But I'm content to wait for His timing and not have my faith dashed because my math was wrong.