% file `diffcoef5.def' % definitions for variant forms % 2023/01/03 % Andrew Parsloe ajparsloe@gmail.com % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % material derivative \difdef { f, s } { D } { op-symbol = \mathrm{D} } % math italic \difdef { f, s, c } { d' } { op-symbol = d, op-order-nudge = 1 mu } \difdef { f, s, c } { D' } { op-symbol = D, op-order-nudge = 1 mu } % Greek \difdef { f, s } { gd } { op-symbol = \delta } \difdef { f, s } { gD } { op-symbol = \Delta } % spaceless appending \difdef { f, fp } { *0 } { *derivand-sep = 0 mu , outer-Ldelim = \mleft ( , outer-Rdelim = \mright ) } % tfrac, nonscalable \difdef { f, fp } { t } { style = tfrac , derivand-sep = 1 mu plus 1 mu minus 1 mu, multi-term-sep = 0 mu , term-sep-adjust = 0 mu , lvwrap-sup-nudge = 0 mu , outer-Ldelim = \bigl (, outer-Rdelim = \bigr ), elbowroom = -2 mu , sub-nudge = -3 mu } % slash fractions: 0=scalable, % 1=big, 2=Big, 3=bigg, 4=Bigg % but > 1 gives eyesores \difdef { s, sp } { 0 } { style = auto , outer-Ldelim = \left [ , outer-Rdelim = \right ] , sub-nudge = 0 mu , *inner-Ldelim = \mleft ( , *inner-Rdelim = \mright ), *outer-Ldelim = \left [ , *outer-Rdelim = \right ] } \difdef { s, sp } { 1 } { style = big , outer-Ldelim = \bigl (, outer-Rdelim = \bigr ), sub-nudge = -2 mu , *inner-Ldelim = \bigl (, *inner-Rdelim = \bigr ), *outer-Ldelim = \bigl [, *outer-Rdelim = \bigr ] } % vrule point of evaluation \difdef { f, fp, s, sp } { | } { outer-Ldelim = \left . , outer-Rdelim = \right |, sub-nudge = 0 mu } % sq. bracket pt of eval. \difdef { f, fp, s, sp } { ] } { outer-Ldelim = \left [ , outer-Rdelim = \right ], elbowroom = 1 mu, sub-nudge = 0 mu } % long var wrap \difdef { f, fp } { (dv) } { long-var-wrap = (dv) } \difdef { f, fp } { dv } { long-var-wrap = dv } % compact, D operator \difdef { c } { D } { op-symbol = \mathrm{D}, op-sub-nudge = -2mu } \difdef { c } { D' } { op-symbol = D, op-sub-nudge = -2mu } % bold \difdef { c } { bD } { op-symbol = \mathbf{D}, op-sub-nudge = -2mu } % differential style \difdef { c, cp } { dl } { style = dl } %%%%%%%%%%% differential %%%%%%%%%% % partial \difdef { l } { p } { op-symbol = \partial } % bold \difdef { l } { b } { op-symbol = \mathrm{d}\mathbf } % line elements: Pythagoras \difdef { l } { + } { multi-term-sep = 0 mu +, term-sep-adjust = 0 mu , outer-Ldelim = } % Minkowski \difdef { l } { - } { multi-term-sep = 0 mu -, term-sep-adjust = 0 mu , outer-Ldelim = } %%%%%%%%%% jacobian %%%%%%%%%% % slash fraction \difdef { j } { s } { style = / }