lineMath: [ ['$','$'], ['\\(','\\)'] ],
      processEscapes: true,
    },
    TeX: {
      Macros: {
        balpha: '\\boldsymbol{\\alpha}',
        bc: '\\mathbf{c}',
        be: '\\mathbf{e}',
        bg: '\\mathbf{g}',
        bq: '\\mathbf{q}',
        bu: '\\mathbf{u}',
        bv: '\\mathbf{v}',
        bw: '\\mathbf{w}',
        bx: '\\mathbf{x}',
        by: '\\mathbf{y}',
        bz: '\\mathbf{z}',
        bsigma: '\\mathbf{\\sigma}',
        sign: '\\operatorname{sign}',
        diag: '\\operato