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It would be helpful to be able to pushstack a coordinate that doesn't have a class at the moment for use with commands that make use of \lastx and \lasty

Not sure if it is an issue as such, but is there a way to "fake" the label axis, to have something like Example 5.5 of https://pi.math.cornell.edu/~hatcher/AT/ATch5.pdf?

I was trying to use spectralsequences on my Mac (literally just copied the intro example into my pset document), and I got this error:

/usr/local/texlive/2021/texmf-dist/tex/latex/spectralsequences/sseqcheckdefinitions.code.tex:78: Package spectralsequences Error: Internal error: Since this version of
(spectralsequences)                spectralsequences, the expl3 definition
(spectralsequences)                of \peek_meaning_ignore_spaces:NTF  was
(spectralsequences)                updated in an incompatible way. Contact
(spectralsequences)                package author Hood Chatham at
(spectralsequences)                [email protected].

I tried updating all my TexLive packages (tlmgr update --all) but that didn't help; not sure how to proceed from here...

If we put a spectral sequence in a sideways environment from the rotating
package, it complains that the x range is too large, even thought it is
actually fine.

Minimal example:

\documentclass{article}
\usepackage{spectralsequences}

\begin{document}
  \begin{sseqpage}
    \class(0, 0)
    \class(1, 1)
    \structline[bend left = 50]
  \end{sseqpage}
\end{document}

Instead of the structline starting from the center of the class, it starts at the point where it would have left the node if it were straight. This looks extremely odd for a very bent structline.

The package throws the following fit-patch-failed warning when loaded, both with the version in the latest texlive release, and the unreleased version.

Package spectralsequences Warning: Internal error: Failed to patch fit.
(spectralsequences)                \circleclasses won't work. Your copy of
(spectralsequences)                tikz is newer than the version
(spectralsequences)                spectralsequences was designed for and
(spectralsequences)                seems to be incompatible with
(spectralsequences)                \circleclasses. Contact package author Hood
(spectralsequences)                Chatham at [email protected].

The version of tikz in use is as follows, without modification, from the latest texlive release.

Package: tikz 2020/01/08 v3.1.5b (3.1.5b)

When trying to draw a single page of a rather simple spectral sequence which is provided with the arguments axes type=center, xrange and yrange together with classes that are out of bounds, I get the following errors:

Missing number, treated as zero.

<to be read again> 
                   \sseq@totalxmargin 
l.19     \end{sseqpage}

Illegal unit of measure (pt inserted).

<to be read again> 
                   \sseq@totalxmargin 
l.19     \end{sseqpage}

and similarly for totalymargin. A minimal example is as follows:

\documentclass{article}
\usepackage{spectralsequences}
\begin{document}

\begin{center}
    \begin{sseqdata}[name = basic, xscale = 1.5, yscale=1.5,
    cohomological Serre grading, classes = {draw = none }, axes type=center,  x range = {-1}{4}, y range = {-1}{4}]
    \end{sseqdata}
    \begin{sseqpage}[name=basic, page = 0]
        \foreach \x in {-15,...,15}
            \foreach \y in {-15,...,15}{
            \class["E_{\page}^{\x,\y}"](\x,\y)
            }
            \foreach \x in {-4,...,6}
            \foreach \y in {-4,...,6}{
                \d\page(\x,\y)
        }
    \end{sseqpage}
\end{center}

\end{document}

I have taken the liberty of publishing this exampleon my ShareLatex account for ease of viewing: https://www.sharelatex.com/9384197184dfpjvctcxxby. Perhaps I am misunderstanding how one should go about typesetting such a spectral sequence?

Note also that in this example, the negatively graded objects in the spectral sequence seem to have a larger than normal vertical bounding box. I am also not sure if this is a bug or not.

This error occurs when compiling with ShareLatex. I have not tried another compiler/parser but I don't see a reason why this error should be compiler related.

The following snippet:

\documentclass{article}
\usepackage{spectralsequences}
\begin{document}
\begin{sseqpage}[grid = go, no axes]
  \class(0,0)
\end{sseqpage}
\end{document}

results in the following non-fatal error:

./test.tex:8: Undefined control sequence.
\sseq@bottomgridpadding ->\sseqxaxisgap

l.8 \end{sseqpage}

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

./test.tex:8: Missing number, treated as zero.
<to be read again>
                   <
l.8 \end{sseqpage}

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

./test.tex:8: Illegal unit of measure (pt inserted).
<to be read again>
                   <
l.8 \end{sseqpage}

Dimensions can be in units of em, ex, in, pt, pc,
cm, mm, dd, cc, nd, nc, bp, or sp; but yours is a new one!
I'll assume that you meant to say pt, for printer's points.
To recover gracefully from this error, it's best to
delete the erroneous units; e.g., type `2' to delete
two letters. (See Chapter 27 of The TeXbook.)

./test.tex:8: Undefined control sequence.
\sseq@bottomgridpadding ->\sseqxaxisgap

l.8 \end{sseqpage}

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

./test.tex:8: Missing number, treated as zero.
<to be read again>
                   p
l.8 \end{sseqpage}

A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

It would be helpful to have a counter available in DoUntilOutOfBounds that one can use to name elements produced.

spectralsequences uses a number of commands internal and private to xparse. Such commands are allowed to change without notice, and exactly this will happen in the next latex, and so your style will break. Please use only public functions from other packages.

The following does not produce the desired outcome:

\documentclass{article}
\usepackage{spectralsequences}

\begin{document}
\begin{sseqpage}[scale=0.3]
  \class(0, 0)
  \class(3, 3)
  \structline [bend left = 10] (0, 0)(3, 3)
\end{sseqpage}
\end{document}

Removing the [scale = 0.3] "fixes" the problem.

Hi,

I propably got something wrong, but the following code does not what I want it to do:
example.txt (MWE)
I wanted to have and print a spectral sequence and then print it again, but with an additional label at a differential (usecase: revealing stuff in a beamerfile).

Changing the color of the differential and label works, but passing a labeltext to the differential via \doptions does not seem to have an effect. Although the manual says, that the universal options in 4.1 could be used with \doptions.

What do I do wrong?

Thanks anyways for the great package! I love it!

Doug says:

If you write code for a spectral sequence within a frame, the results will not be what you hope for, even if the sseq code is correct and works fine a separate test file. You should instead write this code BETWEEN FRAMES (so Beamer itself does not try to process it), and just put the printpage command in the frame environment.

A paragraph about this in your manual could save some users a LOT of grief.

HI! I'm new using GitHub and I wanted to use the package for drawing spectral sequences in overleaf. My problem is that I don't know how to upload the package in overleaf because there are many folders and records, and I'don't know which ones I've to choose.

Using xmirror and ymirror causes the labels on the horizontal coordinate axis to be flipped.

xmirror

\begin{sseqpage}[xmirror, classes = {draw = none}]
\class["A"](0,0)

\class["B"](2,2)
\end{sseqpage}

ymirror

\begin{sseqpage}[ymirror, classes = {draw = none}]
\class["A"](0,0)

\class["B"](2,2)
\end{sseqpage}

both

\begin{sseqpage}[xmirror, ymirror, classes = {draw = none}]
\class["A"](0,0)

\class["B"](2,2)
\end{sseqpage}

produces the attached output.
min.pdf

The most up to date version of spectralsequences that is available on CTAN (v1.2.0) is incompatible with ShareLatex. I circumvented this issue by simply downloading the latest source from this git repository and uploading it for ShareLatex to use instead of the one that is obtained by default from CTAN.

Perhaps an update to CTAN's stashed version is in order?

Great work with this package by the way, I can see it becoming as useful to me as tikzcd is!

The following produces an error:

\documentclass{article}
\usepackage{spectralsequences}

\begin{document}
  \begin{sseqpage}
    \class(0, 0)
    \class(1, 1)
    \extension[red]
  \end{sseqpage}
\end{document}

Error:

Package pgfkeys Error: I do not know the key '/sseqpages/extension/red' and I am going to ignore it. Perhaps you misspelled it.

This compiles without draft but fails to compile with draft.

\documentclass{article}
\usepackage[draft]{spectralsequences}

\begin{document}
\begin{sseqpage}
  \class(0, 2)
  \class(1, 0)
  \DrawIfValidDifferential2(1, 0)(0, 2)
\end{sseqpage}
\end{document}

Temporary workaround: Add the line

\DeclareDocumentCommand \sseq@DrawIfValidDifferential@ { mmO{} } {}

to line 1519 of sseqmain.code.tex