Substitution method

Substitution method may refer to:

• Substitution method (optical fiber), a way to calculate power loss in fiber optic cables
• Substitution method (optimization), the solution method to simple constrained optimization problems
• Substitution method (primary energy), a way to calculate the equivalent primary energy of a non fossil fuel source of electricity

• Epsilon substitution method in calculus
• Weierstrass substitution method, a name sometimes used for tangent half-angle substitution in calculus
• Substitution (algebra)
• Substitution (logic)