Testsuite "failures" with complex sign

David Billinghurst <[email protected]> Sun, 2 Aug 2026 22:54:15 +1000
Newsgroups gmane.comp.mathematics.maxima.general
Message-ID <[email protected]>
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    <p>There are a couple of testsuite "failures" with  git head.  </p>
    <p><font face="monospace">Error(s) found:<br>
          /usr/local/src/maxima/tests/rtest16.mac problems:<br>
            (822 823 835)<br>
          /usr/local/src/maxima/tests/rtest_sign.mac problems:<br>
            (478 479 480 481 482)<br>
          /usr/local/src/maxima/tests/rtest_elliptic.mac problem:<br>
            (243)<br>
          /usr/local/src/maxima/tests/rtest_sinc.mac problems:<br>
            (15 16 17)<br>
        12 tests failed out of 20,499 total tests.</font><br>
    </p>
    <p>The results for rtest16.mac and <font face="monospace">rtest_sign.mac
        (below) </font>seem correct.  Perhaps they haven't been updated
      .  I will investigate the others tomorrow if no-one beats me to
      it.<br>
    </p>
    <p><font face="monospace">Maxima-version:
        "branch_5_49_base_825_g0dff1de2d"<br>
        Maxima build date: "2026-08-02 19:51:08"<br>
        Host type: "x86_64-pc-cygwin"<br>
        Lisp implementation type: "CLISP"<br>
        Lisp implementation version: "2.49+ (2010-07-17) (built
        3666924299) (memory 3994653071)"<br>
        User dir: "/home/dabilling/.maxima"<br>
        Temp dir: "/tmp"<br>
        Object dir:
"/usr/local/src/maxima/binary/branch_5_49_base_825_g0dff1de2d/clisp/2_49___2010_07_17___built_3666924299___memory_3994653071_"<br>
        Frontend: false</font></p>
    <p><font face="monospace">Running tests in rtest16: <br>
        ********************* rtest16.mac: Problem 822 (line 3202)
        ********************<br>
        <br>
        Input:<br>
        errcatch(sign(0.0 %i))<br>
        <br>
        <br>
        Result:<br>
        [zero]<br>
        <br>
        This differed from the expected result:<br>
        []<br>
        <br>
        ********************* rtest16.mac: Problem 823 (line 3205)
        ********************<br>
        <br>
        Input:<br>
        csign(0.0 %i)<br>
        <br>
        <br>
        Result:<br>
        zero<br>
        <br>
        This differed from the expected result:<br>
        imaginary<br>
        <br>
        ********************* rtest16.mac: Problem 835 (line 3243)
        ********************<br>
        <br>
        Input:<br>
        carg(0.0 + %i 0.0)<br>
        <br>
        <br>
        Result:<br>
        0<br>
        <br>
        This differed from the expected result:<br>
        0.7853981633974483</font></p>
    <p><font face="monospace">Running tests in rtest_sign: <br>
        ******************* rtest_sign.mac: Problem 478 (line 1570)
        *******************<br>
        <br>
        Input:<br>
        errcatch(sign(0.0 %i))<br>
        <br>
        <br>
        Result:<br>
        [zero]<br>
        <br>
        This differed from the expected result:<br>
        []<br>
        <br>
        ******************* rtest_sign.mac: Problem 479 (line 1573)
        *******************<br>
        <br>
        Input:<br>
        sign(0.0)<br>
        <br>
        <br>
        Result:<br>
        zero<br>
        <br>
        This differed from the expected result:<br>
        pos<br>
        <br>
        ******************* rtest_sign.mac: Problem 480 (line 1576)
        *******************<br>
        <br>
        Input:<br>
        sign(- 0.0)<br>
        <br>
        <br>
        Result:<br>
        zero<br>
        <br>
        This differed from the expected result:<br>
        neg<br>
        <br>
        ******************* rtest_sign.mac: Problem 481 (line 1579)
        *******************<br>
        <br>
        Input:<br>
        csign(0.0 %i)<br>
        <br>
        <br>
        Result:<br>
        zero<br>
        <br>
        This differed from the expected result:<br>
        imaginary<br>
        <br>
        ******************* rtest_sign.mac: Problem 482 (line 1582)
        *******************<br>
        <br>
        Input:<br>
        csign(0.0 + 0.0 %i)<br>
        <br>
        <br>
        Result:<br>
        zero<br>
        <br>
        This differed from the expected result:<br>
        complex<br>
        <br>
        569/574 tests passed (not counting 5 expected errors)<br>
        <br>
        The following 5 problems failed: (478 479 480 481 482)<br>
      </font></p>
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