matlab中 >> x=-1:0.001:1; >> y=log((1+sqrt(1-x.^2))/x)+sqrt(1

matlab中 >> x=-1:0.001:1; >> y=log((1+sqrt(1-x.^2))/x)+sqrt(1-x.^2);
总是显示 log is zero 是因为自变x不能取到0吗?该如何修改?O(∩_∩)O谢谢