求函数f(x)属于Φ，使f(x)误差平方和最小的翻译：Seek function f (x) belong to φ, so that f (x) squared and minimum 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Seek function f (x) belong to φ, so that f (x) squared and minimum

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Job-seekers Φ function f (x) belonging to the f (x) error Square and the smallest

Seek function f (x) belong to φ, so that f (x) squared and minimum