Exponential integrator

<p>Exponential integrators are a class of <a href="/facts/Numerical_method/MrQIMSIY">numerical methods</a> for the solution of <a href="/facts/Ordinary_differential_equations/ygKGQ8kD">ordinary differential equations</a>, specifically <a href="/facts/Initial_value_problem/PqmJfGML">initial value problems</a>.  This large class of methods from <a href="/facts/Numerical_analysis/QT9cYa9z">numerical analysis</a> is based on the exact integration of the <a href="/facts/Linear_system/uEl20Kc1">linear</a> part of the initial value problem. Because the linear part is <a href="/facts/Integral/4PeM0mJc">integrated</a> exactly, this can help to mitigate the <a href="/facts/Stiff_equation/wQls6Mo1">stiffness</a> of a differential equation. Exponential integrators can be constructed to be <a href="/facts/Explicit_and_implicit_methods/jnJhWfuh">explicit or implicit</a> for <a href="/facts/Numerical_methods_for_ordinary_differential_equations/rbrYBco3">numerical ordinary differential equations</a> or serve as the <a href="/facts/Integrator/VTqXQuQU">time integrator</a> for <a href="/facts/Numerical_partial_differential_equations/69kwj7mL">numerical partial differential equations</a>.
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Exponential integrator open-in-new

Exponential integrator