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A manual for the **Wherigo Geocaching Tools**. You can find the cache .---- -.... ....- -.... ..... --... nanolightseconds from the orthocenter of Adorp, Beesd and Sevenum and (cccxlv)MMMLIV millifurlongs from the incenter of Deventer, Ede and Effen. If you understand the working of *WGT* this should be no problem, so Read The Fine Manual below.

Nederlands Deutsch (via google translate)

**Attention:** This is a complex program. Initialising may take some time. Also after updating for example the language or units it may take a while before all updates are processed. Please be patient and don't assume the cardridge has frozen.

Further the interface of the Oregon isn't as user friendly as I'd like it to be. For example the numeric keypad is missing a dot (.). A lot of people mistake the minus sign (-) for the dot. When entering numbers ** WGT** accepts the minus sign as a dot. For example 116.88611 can be entered as 116-88611.

When you select Dutch Grid^{*}, you have to enter the coordinates in Dutch Grid. Dutch grid is only valid for x in between -7000 and 300000 and y in between 289000 and 629000. If you enter a value outside this range, an asterisk will be added. For example: -50536 130922*.

^{*}Rijksdriehoekscoördinaten or RD for short in Dutch.

For example: Enter radius 16, you can now enter values in base 16 or hexadecimal. Entering the number 4EB will convert it to bases 2 up until 36. The binary representation of this number is 10011101011, octal: 2353 and decimal: 1259.

- When encoding to Roman, abbreviations like IV for 4 are used. You can enter also the ancient representation IIII for 4, in fact you can even use IIIII for 6.
- Although shortcuts MIM for 1999 disagree with the rule that letters may only precede letters of the same order, MIM will be converted to 1999. You can even push the subtractive principle to it's limit. For example by entering IIVVVXXXXC. When you want to convert 1999 to Roman numerals it will return the correct format of MCMXCIX.
- Large numbers are commonly represented by a bar over the characters, meaning the value of the letter will be multiplied by 1000. I = 1000, V = 5000, X = 10000, etc. Since most GPSr's cannot handle overlines, the notation with parentheses will be used. 90500 or IXD in Roman will be represented as (ix)D. You can also use the parenthesis to enter large Roman numerals.

^{*}The line A-B is the great circle that goes though points A and B.

If you want to calculate the intersections of lines that are defined by a single point and a bearing, project that point over a reasonable distance^{*} and use this point as the second point defining the line.

^{*}No to small to have for accuracy, not to big to confuse with intersection result will be returned. About 1000 km will usually do.

Given three known points A, B and C an observer at an unknown point P observes that the segment AB subtends an angle a and the segment BC subtends an angle b; the problem is to determine the position of the point P. The angle can be entered in the radius field. Where the circumference of the Earth is 360 degrees. Thus the radius is one radial and one minute one nautic mile. You can enter angles easy by adding deg to the number or switching the distance unit to Angle.

The Dutch astronomer and mathematician Willebrord_Snellius Was the first to solve this problem. He calculated the position of his house, by measuring the angles between the Pieterskerk, City Hall and Hooglandse Kerk. ** WGT** is also capable of solving the problem: Determine the position of the point P given four known points A, B, C and D an observer at an unknown point P observes that the segment AB subtends an angle a and the segment CD subtends an angle c. So solve this problem, enter a small (< 2', 2 NM or about 3.7 km) angle.

Since I still haven't found a reliable way to show special characters (high ASCII or Unicode), The degree symbol (°) will be left out when showing and entering temperatures. Also when temperature is expressed in Réaumur or Rømer, the accented characters will be replaced by regular charaters. Their symbols will become *Re* and *Ro* respectively.

- X marks the spot.
- The base of
is the crossing of the runways of air base Gilze-Rijen.*WGT* - The default circles around each point and zone are intersecting this cross.

- The base of
- What are you saying?
- When the names of the points, including the prefix,
*x*), are pronounced the way the Dutch do. They sound like Dutch cities, towns and hamlets. - The default location of the points is located at those places.
- The image is an areal photo of that place.

- When the names of the points, including the prefix,
- Lunatic.
- The default locations of the zones are the landing places of Apollo 11 and 12.
- The images show these landing places.

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## AwardsI'm proud to have been awarded with: |
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**
Additional Hints**
(Decrypt)

Gerr

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M

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N|O|P|Q|R|S|T|U|V|W|X|Y|Z

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