有理式，包括分式和整式。这种代数式中对于字母只进行有限次加、减、乘、除和整数次乘方这些运算，它也可以化为两个多项式的商。例如2x + 2y等都是有理式。含有关于字母开方运算的代数式称为无理式。
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实系数有理式 [数] rational expression with real coefficients
有理式型 Rational Formula
有理式近似 rational approximation
整式和分式统称有理式 rational expression
有理数式 rational expression
有理分式 [数] rational fraction
角有理式 rational expressions of trigonometric functions
三角有理式 rational expressions of trigonometric functions
三角有理式. rational expressions of trigonometric functions
进行各种有理式计算，求多项式、有理式方程和超越方程的精确解和近似解。
Various RATIONAL, polynomials, RATIONAL Exact solutions of equations and transcendental equations and approximate solutions.
函数逼近应用实例结果表明，将有理式多层神经网络用于解决传统问题是有效的。
Experiment result illustrates the effectiveness of the rational fraction multiplayer feed forward neural networks in solving traditional problems.
与传统的方法相比，无需对随机信号的协方差函数的功率谱进行分解，不受限于协方差函数的功率谱是否为有理式。
Compared with the traditional method, it does not need disassembling the power spectral densities of stochastic signal covariance and is not bound to if the power spectral densities are rational.
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