I used a trigonomic function to get US Hwy-95 and NV Hwy-140 signs to evaluate to
phi(the golden ratio).Date: Mon, 17 Apr 2006 08:18:21 -0700 (MST) From: Gerald D. Thurman To: email@example.com Subject: Potential RSM in NV Hello RSM... It looks like you might not have any signs from Nevada. tan(140 - 95) = 1.61978 Approximates 'phi' if truncated to the hundredths. The highway signs were found heading north on US Hwy-95 about 30 miles from Winnemucca, Nevada.
On 19 April 2006 I was informed via an email message from RoadSignMath.com that they were no longer allowing the use of trigonomic functions and log functions. In addition, they tightened the rules for signs evaluating to math constants such as pi, e, phi.
I agreed with RoadSignMath.com's rule change and sent the following reply.Date: Thu, 20 Apr 2006 04:53:41 -0700 (MST) From: Gerald D. Thurman To: RSM Administrator Subject: Re: Potential RSM in NV On Wed, 19 Apr 2006, RSM Administrator wrote: > > This sign is no longer a winner due to todays rule change, E1. > Excellent rule change. I was going to suggest that the constants be truncated to at least the thousandths. Keep up the great work.
It is relatively easy to match mathematical constants to the hundredths and it appears as though RoadSignMath.com agrees.Date: Fri, 21 Apr 2006 06:12:32 -0500 From: RSM Administrator To: Gerald D. Thurman Subject: Re: Potential RSM in NV That is an interesting idea. I'm going to see what happens to constant submissions now that we've removed these functions. If there are still too many, I may indeed act on your idea.
The following BARS were created over the span of three days and they demonstrate what RoadSignMath.com is trying to eliminate via their rule change.
[uses trig]US Hwy-95 and NV Hwy-140 in Northern Nevada Evaluate to 'phi' [12 April 2006]
[uses log]IL Hwy-84 and US Hwy-20 in Illinois Evaluate to 'phi' [11 April 2006]
[uses trig]US Hwy-6 and US Hwy-50 in Utah Evaluate to 'e' [10 April 2006]
[uses trig]US Hwy-491 and US Hwy-666 in New Mexico (and Utah) Evaluate to 'phi' [10 April 2006]
The highways signs from Illinois were accepted by RoadSignMath.com prior to the rule change. The highways signs from Nevada were rejected because of the rule change. The highway signs from Utah and New Mexico were never submitted.
RoadSignMath.com:: Announce: Trigonometry Ruled Out, Constants Refined
Update::21 April 2006
I fooishly submitted IL Hwy-84 and US Hwy-20 signs to RoadSignMath.com in order to receive two bonus points for submitting the first sign from Illinois.Date: Tue, 11 Apr 2006 07:49:48 -0700 (MST) From: Gerald D. Thurman To: firstname.lastname@example.org Subject: Potential RSM in Illinois Hello... This is a huge stretch and I will understand completely if the sign is rejected. log(sqrt(84 x 20)) = 1.61265 1.61265 truncated to the hundredths is 1.61 The signs are located in the northwest corner of Illinois at the junction of IL Hwy-84 and US Hwy-20.
The signs were accepted and posted to RSM on 15 April 2006.RoadSignMath.com:: Illinois Golden Ratio
Creator: Gerald D. Thurman
Created: 20 April 2006