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工程问题或数值计算中常遇到二元函数、三元函数或多元函数的插值问题。本文推荐一种用基函数构造的三元或多元函数的插值公式。公式的形式极为简单易用。本文推荐的方法已在排汽缸扩压器的最佳扩压比选择中得到应用。
Engineering problems or numerical calculations often encounter the binary function, ternary function or multivariate function interpolation problem. In this paper, we propose an interpolation formula for a ternary or multivariate function constructed with basis functions. The form of the formula is extremely easy to use. The method recommended in this article has been applied to the best choice of diffuser ratio in the exhaust manifold diffuser.