将保持上面电路的缩放比例,并保持数值在INT类型指令的工作范围之内。然而,DIV指令具有丢弃余数的固有特性,所以当DIV输出乘以MUL指令时,也要乘上因为丢弃的余数引入的误差。误差的百分比在输入值的整个范围是非线性的,输入小,误差的百分比大。通过对比,在上面的例子中,由于DIV操作最后执行,结果更精确,所以丢弃的余数也没有被乘进去。如果要求更高的精度,在这个例子中用REAL类型数学指令代替使余数不被丢弃。
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