How do I translate insert this polymath code into COMSOL?

\begin{tabular}{r|l} 1 & d(Ca)/d(t)=ra \\ 2 & d(Cb)/d(t)=rb \\ 3 & d(Cc)/d(t)=rc \\ 4 & Na=CaV \\ 5 & Nb=CbV \\ 6 & Nc=CcV \\ 7 & sumNcp=Na15+Nb15+Nc30 \\ 8 & dh=6000 \\ 9 & d(T)/d(t)=((UA(450T))+(dh(raV)))/(sumNcp) \\ 10 & UA=0 \\ 11 & V=10 \\ 12 & k=0.01exp((10000/1.987)(1/3001/T)) \\ 13 & ra=CCaCb \\ 14 & rb=ra \\ 15 & rc=ra \\ 16 & Ca(0)=01 \\ 17 & Cb(0)=0.1 \\ 18 & Cc(0)=0 \\ 19 & T(0)=300 \\ 20 & t(0)=0 \\ 21 & t(f)=250 \end{tabular}