求专业英语翻译（数学）Let X and Y be sets and suppose f: X→Y is a funct
求专业英语翻译（数学）
Let X and Y be sets and suppose f: X→Y is a function. If g : Y→X is another function and has the property that y=f(x) if and only if x=g(y),then we call g the inverse function to f. Observe that x=g(y) is what we obtained by solving the equation y=f(x) for x in term of y. However,in the general case.the equation y=f(x) may have no solutions at all or else may have many solutions. Thus,for f:X→Y to admit an inverse function,it is necessary that,for each y in the set Y,the equation y=f(x) has a unique solution x in the set X.
晕+_+是翻译这一段
Let X and Y be sets and suppose f: X→Y is a function. If g : Y→X is another function and has the property that y=f(x) if and only if x=g(y),then we call g the inverse function to f. Observe that x=g(y) is what we obtained by solving the equation y=f(x) for x in term of y. However,in the general case.the equation y=f(x) may have no solutions at all or else may have many solutions. Thus,for f:X→Y to admit an inverse function,it is necessary that,for each y in the set Y,the equation y=f(x) has a unique solution x in the set X.
晕+_+是翻译这一段
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