Wang Yong-de
Abstract
When we solve a maths problem,we should use the method of substitution to make the problem easier.It is the equivalent generation changes.Also it has three forms;triangle substitution,the radical substitution,overall substitution,and the equivalent generation substitution.
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When we solve a maths problem,we should use the method of substitution to make the problem easier.It is the equivalent generation changes.Also it has three forms;triangle substitution,the radical substitution,overall substitution,and the equivalent generation substitution.
Key concepts: Substitution (logic), Substitution method, Substitution effect, Mathematics, Computer science, Economics, Programming language, Neoclassical economics