NEWS

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oeis.tools 0.3.1 (2026-10-07)

Breaking changes

• create_bfile() no longer writes to the working directory by default: output_path must now be supplied.

Bug fixes and improvements

• New oeis_available() reports whether the OEIS web service can be reached (it may refuse requests from some cloud and CI hosts).
• get_graph_image() failed whenever 'IRdisplay' was installed (it passed an argument display_png() does not accept). It now calls display_png() correctly, and only inside a Jupyter kernel.
• HTTP requests now identify themselves with an oeis.tools User-Agent instead of a browser User-Agent string. (The 0.3.0 NEWS incorrectly said this was already the case.)
• Network and HTTP failures now raise an informative error naming the URL, and Sequence() reports a clear error when no OEIS entry exists.

Documentation

• Every exported function now has examples; examples that need the internet run only when oeis_available() is TRUE.
• Documented the return value of plot.Sequence().
• New package title and description.

oeis.tools 0.3.0

New features

• Sequence gains get_bibtex(), get_data_values(), get_graph_image(), get_graph_png() and get_keyword_description().
• BFile gains get_bfile_indices(); new create_bfile() helper.
• plot_data() supports overlaying several b-files on one plot (p argument) and returning the plot object (return_plot).

Documentation

• New "Getting started" vignette and expanded README.
• Public API now mirrors the Python oeis-tools package.
• Added citation information (citation("oeis.tools") and CITATION.cff).

Internal

• Expanded test suite; package passes R CMD check --as-cran.

oeis.tools 0.2.0

• Initial release: Sequence and BFile S3 classes, OEIS metadata and b-file fetching, gmp::bigz term storage, and ggplot2 plotting.