Merge pull request sigma-py#257 from nschloe/fix-255

Fix 255

Merge pull request sigma-py#247 from nschloe/modernize

Modernize

Merge pull request sigma-py#246 from nschloe/sigma-pygh-245

fix dtype in quad

Merge pull request sigma-py#246 from nschloe/sigma-pygh-245

fix dtype in quad

Merge pull request sigma-py#244 from nschloe/guess-mode

Guess mode

Merge pull request sigma-py#244 from nschloe/guess-mode

Guess mode

Merge pull request sigma-py#242 from nschloe/max-num-subintervals

Max num subintervals

Merge pull request sigma-py#242 from nschloe/max-num-subintervals

Max num subintervals

Merge pull request sigma-py#241 from nschloe/quad-infinite-limits

Quad infinite limits

Merge pull request sigma-py#240 from nschloe/easier-quad

Easier quad