This program generates epsilon-delta proofs for polynomial limits.
Java 8+
lim x→c f(x) = L
c — An integer or a fraction
f(x) — A sequence of terms seperated by addition (+) or subtraction (-) operators
L — An integer or a fraction
Fractions are of the form a or a/b, with an optional preceding minus sign (-)
Terms are of the form a ora/b or ax or (a/b)x or x^n or ax^n or (a/b)x^n
a, b, n ∈ ℕ; x is the character 'x'
