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在高中数学中有这样一道题:“作绝对值方程|y|=sinx的图形。”在这里涉及到形如f(|y|)=g(x)的一类方程的作图问题。本文将介绍这类方程的图形的作法,它可以作为数学教学或者数学课外活动小组的辅导材料。
In high school mathematics there is such a question: “The graph of the absolute value equation |y|=sinx.” This involves the problem of mapping a class of equations of the form f(|y|)=g(x). This article will introduce the graphic method of this type of equation. It can be used as a teaching material for mathematics teaching or mathematics extracurricular activity group.