the mathematic significes of the st.louis arch?
100110
The equation for the arch is: \n\ny = 693.8597 - 68.7672 COSH(0.0100333 x) feet
57176
http://www.calculus.org/
346906
http://www.orthojournalhms.org/volume7/manuscripts/ms13.htm
1017458
symetric properety...\n\n\nok heres why.....\n\n(pretend the equal signs are parallel line segments)\n\n===========================\n\n\ndo you see how you can split them dont the middle, thats called the symetric property
910564
umm none that im aware of, what kind of mathamatics leval are you looking at?
735129
they would look like cross (X).. the sin(-x) graph loos like  / and     -sinx would look like &#92;. \n\nIf you dont get it please visit this figure uploaded on my webpage\n\nhttp://www2.lut.fi/~vasava/untitled.jpg.
486133
For pentagram : http://altreligion.about.com/library/weekly/aa100102a.htm\n\nhttp://images.google.com/imgres?imgurl=http://www.vt-2004.org/Education/vt2004-ed1-fig12.gif&imgrefurl=http://www.vt-2004.org/Education/edu1app5.html&h=2161&w=2881&sz=103&tbnid=G8CJUP2KC4oJ:&tbnh=112&tbnw=150&prev=/images%3Fq%3Dpentagram%26hl%3Den%26lr%3D&start=1&sa=X&oi=images&ct=image&cd=1\n\nFor phi:\nhttp://mathworld.wolfram.com/GoldenRatio.html\n\nRelation:\nhttp://www.ventana-catalog.com/GPPenl.htm
16460
It is quite obvious that since geometry is the instrument to design, and to design is to build an organized spacial structure, the knowledge of spacial forms is a necessary condition to deliver an architectonic message of the best quality. Moreover, with the introduction of computer design softwares, the possibilities of combinations of geometrical systems are enormously increased. And geometry is for the architect a disciplinal means, an essential implement in the "consideration" of the forms that intervene in the "composition" of space.
411944
Not his original, but the image in the middle of the first link I'm listing is pretty close to Descartes' from De Meteorologica.  The second source has several modern takes on the image as well as a nice physical explanation of what is going on.
1000294
Well, the horizontal fraction bar is called a "vinculum" but the slanted version is called a "solidus."\n\nEDITED TO ADD: dax is right, btw... the word "solidus" applies to any use of a "slash."  Also, the word "vinculum" applies to any placement of a bar over mathematical symbols in order to group them, like the horizontal bar part of the radical ("square root") symbol (√), or the bar placed over the repeating numbers of a decimal expression.
840317
if it is a true arch the length would equal the diameter,\nso radius would be half the diameter (length)
655713
Can I assume you are a da vinci quest fan??? :-)\n\nIf so the answer you are looking for is - squares
279906
Some of the answers in this are ridiculous.  In the "G" lecture of the second degree, the candidate is told that it represents "geometry" which is the Liberal Art/Science most revered by Masons, and that, more importantly it is the initial letter of God.  both of these things are discussed in the same 5 minute lecture.  Sorry to dissapoint the answerer who had a whole theory worked up.
932841
This might help --> http://www.uwm.edu/~ericskey/TANOTES/Geometry/node15.html
450396
The closest I came up with is the "defined as" symbol:\nhttp://en.wikipedia.org/wiki/Table_of_mathematical_symbols\n\nscroll down to :=
779641
Ahh, a triangle. Since you know the two long sides of the triangle and the angle between them, use the Lore of Co-signs to get the third side (Law of Cosines).
207651
http://mathworld.wolfram.com\nhttp://en.wikipedia.org/wiki/Mathematics