D:\j_Iam_TEMP\_jh\jsp1.wxmx
(%i1) kill(all);

\[\]\[\tag{%o0} \ensuremath{\mathrm{done}}\]

(%i6) ro_rt:13600;g:9.81;H:0.1;ro_v:1000;h:0.1;p_a:101325;

\[\]\[\tag{%o1} 13600\]

\[\]\[\tag{%o2} 9.81\]

\[\]\[\tag{%o3} 0.1\]

\[\]\[\tag{%o4} 1000\]

\[\]\[\tag{%o5} 0.1\]

\[\]\[\tag{%o6} 101325\]

(%i7) eq:p_0+ro_v·g·(H+h)=ro_rt·g·H+p_a;

\[\]\[\tag{%o7} {p_0}\mathop{+}1962.0\mathop{=}114666.6\]

(%i8) solve(eq,[p_0]);

\[\]\[rat: replaced -112704.6 by -563523/5 = -112704.6\]

\[\]\[\tag{%o8} \left[ {p_0}\mathop{=}\frac{563523}{5}\right] \]

(%i9) p_0_s:563523/5,numer;

\[\]\[\tag{%o9} 112704.6\]

(%i12) p_m:0;p_vac:0;p_abs:0;

\[\]\[\tag{%o10} 0\]

\[\]\[\tag{%o11} 0\]

\[\]\[\tag{%o12} 0\]

(%i13) if p_0_s < p_a then p_v:p_ap_0_s else p_m:p_0_sp_a;

\[\]\[\tag{%o13} 11379.600000000006\]

(%i15) p_v;p_m;

\[\]\[\tag{%o14} {p_v}\]

\[\]\[\tag{%o15} 11379.600000000006\]


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The source of this Maxima session can be downloaded here.