Excel Programs
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Matrix Paper

Kuttaka Solves the linear congruence in one unknown.
Diophantine Equation Solves one diophantine equation in two unknowns.
Chinese Remainder Theorem Solves three congruences over relatively prime mods.
Powers Raises an arbitrary base to an arbitrary power in an arbitrary modulus.
Order Finds the order of an element in a given modulus. Some limitations apply.
Roots Finds roots of polynomials.
Hensel's Lemma As its name indicates.
By Row It gives a proper matrix from its first row.
By Sequence It gives a proper matrix from its sequence.
Locator It gives the location of a fraction in the Stern-Brocot sequence.
Calculator It calculates the nth term of the Stern-Brocot sequence.
Remarkable Sequence It gives the first 500 values of the sequence.