The e-book, *Pseudocolor in Pure and Applied Mathematics, *has been moved
here.

*The Structure of the Genetic Code *is being written
here. This
second e-book includes **SAGC**: *Search for an Alternative
Genetic Code.*

**YOUVAN Inc. **is in formation as of 1/2/2015. The
company writes software in *Mathematica *for special uses in genomics.
Several algorithms have been developed as part of SAGC to detect DNA sequences
that are translated by a genetic code that has major alterations. We
predict that if an alternative code exists and it preserves the hydropathy
features of Complementary Proteins, then the most likely changes will involve
the assignment of amino acid residues to the codon's second position A/T.
In our "Universal" code, 2nd position A codes for hydrophilic residues while T
codes for hydrophobic residues. This assignment could change and preserve
the overall hydropathy features of the code if it changed the assignment of
hydrophilic / hydrophobic residues from second position A/T to T/A, G/C, or C/G.

While working on these algorithms and code, **YOUVAN Inc.**
found a short-cut solution in linear algebra for the technique of *Singular
Value Decomposition *(SVD). This short-cut method was dubbed "Youvan's
Inverse" or YI on *Wikipedia*, and it was found equal to the SVD solution
of a rectangular matrix if the rows of the matrix were a complete set of the
elements of a Tuple. The digital representation of the genetic code
happens to be a Tuple of A, C, G, T.

**YOUVAN Inc.** is active in building distributed computers
running genomics code in *Mathematica. *The source code is open to
our clients, and it is written in an expansive style. Thus it facilitates
computation experiments in genomics at a research level in both molecular
biology and mathematics.

Douglas Youvan / January 2, 2015 / doug@youvan.com / 620-875-0108