Singular Manual: texobj

| #### D.9.2.8 texobj Procedure from library `latex.lib` (see latex_lib). Usage: texobj(fname,l); fname string, l list Return: if `fname=""`: string, the entries of l in LaTeX-typesetting; otherwise: append this string to the file `<fname>`, and return nothing. Note: preceding ">>" are deleted in `fname`, and suffix ".tex" (if not given) is added to `fname`. Example:
    LIB "latex.lib";
    // -------- prepare for example ---------
    if (defined(TeXaligned)) {int Teali=TeXaligned; kill TeXaligned;}
    if (defined(TeXbrack)){string Tebra=TeXbrack; kill TeXbrack;}
    //
    //  --------------  typesetting for polynomials ----------
    ring r = 0,(x,y),lp;
    poly f = x5y3 + 3xy4 + 2xy2 + y6;
    f;
    ==> x5y3+3xy4+2xy2+y6
    texobj("",f);
    ==> $$
    ==> \begin{array}{rl}
    ==> & x^{5}y^{3}+3xy^{4}+2xy^{2}+y^{6}\\
    ==> \end{array}
    ==> $$
    //  --------------  typesetting for ideals ----------
    ideal G = jacob(f);
    G;
    ==> G[1]=5x4y3+3y4+2y2
    ==> G[2]=3x5y2+12xy3+4xy+6y5
    texobj("",G);
    ==> $$
    ==> \left(
    ==> \begin{array}{c}
    ==> 5x^{4}y^{3}+3y^{4}+2y^{2}, \\
    ==> 3x^{5}y^{2}+12xy^{3}+4xy+6y^{5}
    ==> \end{array}
    ==> \right)$$
    //  --------------  variation of typesetting for ideals ----------
    int TeXaligned = 1; export TeXaligned;
    string TeXbrack = "<"; export TeXbrack;
    texobj("",G);
    ==> $\left<5x^{4}y^{3}+3y^{4}+2y^{2},3x^{5}y^{2}+12xy^{3}+4xy+6y^{5}\right>$
    kill TeXaligned, TeXbrack;
    //  --------------  typesetting for matrices ----------
    matrix J = jacob(G);
    texobj("",J);
    ==> $$
    ==> \left(
    ==> \begin{array}{*{2}{c}}
    ==> 20x^{3}y^{3} & 15x^{4}y^{2}+12y^{3}+4y \\
    ==> 15x^{4}y^{2}+12y^{3}+4y & 6x^{5}y+36xy^{2}+4x+30y^{4}
    ==> \end{array}
    ==> \right)
    ==> $$
    //  --------------  typesetting for intmats ----------
    intmat m[3][4] = 9,2,4,5,2,5,-2,4,-6,10,-1,2,7;
    texobj("",m);
    ==> $$
    ==> \left(
    ==> \begin{array}{*{4}{r}}
    ==> 9 & 2 & 4 & 5\\
    ==> 2 & 5 & -2 & 4\\
    ==> -6 & 10 & -1 & 2
    ==> \end{array}
    ==> \right)
    ==> $$
    //
    // --- restore global variables if previously defined ---
    if (defined(Teali)){int TeXaligned=Teali; export TeXaligned; kill Teali;}
    if (defined(Tebra)){string TeXbrack=Tebra; export TeXbrack; kill Tebra;}

User manual for Singular version 4-2-1p3, 2021, generated by texi2html.