_constant.html)
      * [ polars.Expr.fill_nan ](../../expressions/api/polars.Expr.fill_nan.html)
      * [ polars.Expr.fill_null ](../../expressions/api/polars.Expr.fill_null.html)
      * [ polars.Expr.filter ](../../expressions/api/polars.Expr.filter.html)
      * [ polars.Expr.flatten ](../../expressions/api/polars.Expr.flatten.html)
      * [ polars.Expr.floor ](../../expressions/api/polars.Expr.floor.html)
      * [ polars.Expr.forward_fill ](../../expressions/api/polars.Expr.forward_fill.html)
      * [ polars.Expr.gather ](../../expressions/api/polars.Expr.gather.html)
      * [ polars.Expr.gather_every ](../../expressions/api/polars.Expr.gather_every.html)
      * [ polars.Expr.get ](../../expressions/api/polars.Expr.get.html)
      * [ polars.Expr.head ](../../expressions/api/polars.Expr.head.html)
      * [ polars.Expr.inspect ](../../expressions/api/polars.Expr.inspect.html)
      * [ polars.Expr.interpolate ](../../expressions/api/polars.Expr.interpolate.html)
      * [ polars.Expr.limit ](../../expressions/api/polars.Expr.limit.html)
      * [ polars.Expr.lower_bound ](../../expressions/api/polars.Expr.lower_bound.html)
      * [ polars.Expr.map_dict ](../../expressions/api/polars.Expr.map_dict.html)
      * [ polars.Expr.pipe ](../../expressions/api/polars.Expr.pipe.html)
      * [ polars.Expr.qcut ](../../expressions/api/polars.Expr.qcut.html)
      * [ polars.Expr.rechunk ](../../expressions/api/polars.Expr.rechunk.html)
      * [ polars.Expr.reinterpret ](../../expressions/api/polars.Expr.reinterpret.html)
      * [ polars.Expr.repeat_by ](../../expressions/api/polars.Expr.repeat_by.html)
      * [ polars.Expr.replace ](../../expressions/api/polars.Expr.replace.html)
      * [ polars.Expr.reshape ](../../expressions/api/polars.Expr.reshape.html)
      * [ polars.Expr.reverse ](../../expressions/api/polars.Expr.reverse.html)
      * [ polars.Expr.rle ](../../expressions/api/polars.Expr.rle.html)
      * [ polars.Expr.rle_id ](../../expressions/api/polars.Expr.rle_id.html)
      * [ polars.Expr.round ](../../expressions/api/polars.Expr.round.html)
      * [ polars.Expr.round_sig_figs ](../../expressions/api/polars.Expr.round_sig_figs.html)
      * [ polars.Expr.sample ](../../expressions/api/polars.Expr.sample.html)
      * [ polars.Expr.shift ](../../expressions/api/polars.Expr.shift.html)
      * [ polars.Expr.shift_and_fill ](../../expressions/api/polars.Expr.shift_and_fill.html)
      * [ polars.Expr.shrink_dtype ](../../expressions/api/polars.Expr.shrink_dtype.html)
      * [ polars.Expr.shuffle ](../../expressions/api/polars.Expr.shuffle.html)
      * [ polars.Expr.slice ](../../expressions/api/polars.Expr.slice.html)
      * [ polars.Expr.sort ](../../expressions/api/polars.Expr.sort.html)
      * [ polars.Expr.sort_by ](../../expressions/api/polars.Expr.sort_by.html)
      * [ polars.Expr.tail ](../../expressions/api/polars.Expr.tail.html)
      * [ polars.Expr.take ](../../expressions/api/polars.Expr.take.html)
      * [ polars.Expr.take_every ](../../expressions/api/polars.Expr.take_every.html)
      * [ polars.Expr.to_physical ](../../expressions/api/polars.Expr.to_physical.html)
      * [ polars.Expr.top_k ](../../expressions/api/polars.Expr.top_k.html)
      * [ polars.Expr.upper_bound ](../../expressions/api/polars.Expr.upper_bound.html)
      * [ polars.Expr.where ](../../expressions/api/polars.Expr.where.html)
    * [ Meta ](../../expressions/meta.html) __
      * [ polars.Expr.meta.eq ](../../expressions/api/polars.Expr.meta.eq.html)
      * [ polars.Expr.meta.has_multiple_outputs ](../../expressions/api/polars.Expr.meta.has_multiple_outputs.html)
      * [ polars.Expr.meta.is_regex_projection ](../../expressions/api/polars.Expr.meta.is_regex_projection.html)
      * [ polars.Expr.meta.ne ](../../expressions/api/polars.Expr.meta.ne.html)
      * [ polars.Expr.meta.output_name ](../../expressions/api/polars.Expr.meta.output_name.html)
      * [ polars.Expr.meta.pop ](../../expressions/api/polars