scale = 20
它设置小数位数。
$ bc bc 1.06 copyright 1991-1994,1997,1998,2000 Free Software Foundation,Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 355/113 3 scale=20 355/113 3.14159292035398230088 quit $
scale = 20
它设置小数位数。
$ bc bc 1.06 copyright 1991-1994,1997,1998,2000 Free Software Foundation,Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 355/113 3 scale=20 355/113 3.14159292035398230088 quit $