FastSortF64 The way for float64 sort faster cause type float64 follow IEEE754 features of floating standard.

In 通配.

Insert Add element(s) at any index of the slice orig Need a slice ins Need a slice Func will change orig slice.

NI Slice A element not in Slice B [T]A数组是否有B不包含的元素,并返回B中不包含的A的元素数组n 不在B的元素idx index.

RmDup RmDupI remove duplicate & zero element rmEmp 是否需要删除zero值.