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Algorithms to approximate numerically a root of a nonlinear equation or system: for instance, Newton's method, secant method, bisection, etc.
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Isolating Real Roots of Polynomial–Exponential Function over Algebraic Numbers
Let $\mathbb{A}$ be the set of algebraic numbers and $\mathbb{A}[t]$ the set of polynomials in $t$ with coefficients in $\mathbb{A}$. Given a finite sum of $F(t)=\sum_{k}f_k(t) e^{\eta_k t}$ for pairw …