$\mathrm{restart}$

$\ln \(0\)$

Error, (in ln) numeric exception: division by zero

$\tan \left(\frac{\mathrm{\π}}{2}\right)$

Error, (in tan) numeric exception: division by zero

$\mathrm{NumericEventHandler}\left(\mathrm{division\_by\_zero}\=\mathbf{proc}\left(\mathrm{operator}\,\mathrm{operands}\,\mathrm{defVal}\right)\mathbf{if}\mathrm{operator}\=\ln \mathbf{then}\mathbf{return}\−\mathrm{\∞}\mathbf{else}\mathbf{return}\mathrm{defVal}\mathbf{end\; if}\mathbf{end\; proc}\right)\;$$\mathrm{division}\mathrm{\_by\_zero}\=\mathbf{proc}\left(\mathrm{operator}\,\mathrm{operands}\,\mathrm{defVal}\right)\mathrm{defVal}\mathbf{end\; proc}$

$\mathrm{division\_by\_zero}=\mathrm{default}$

$\mathrm{division}\mathrm{\_by\_zero}=\mathbf{proc}\left(\mathrm{operator}\,\mathrm{operands}\,\mathrm{defVal}\right)\mathrm{defVal}\mathbf{end\; proc}$

$\ln \left(0\right)$

$-\mathrm{\infty }$

$\tan \left(\frac{\mathrm{\π}}{2}\right)$

$\mathrm{\infty }+\mathrm{\infty }\mathrm{I}$

$\mathrm{restart}$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$\mathrm{int}\left(\sin \left(f\right)\,x\right)\;$

$-\frac{\cos \left(\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x\right)}{{\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1}$

$\mathrm{simplify}\left(\right)\;$

Error, (in simplify/trig) numeric exception: division by zero

$\mathrm{restart}$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$\mathrm{int}\left(\mathrm{simplify}\left(\sin \left(f\right)\right)\,x\right)\;$

$0$

$\mathrm{restart}$

$\mathrm{Normalizer}≔\mathrm{`simplify`}$

$\mathrm{Normalizer}≔\mathrm{simplify}$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$f≔\left({\sin \left(a\right)}^2+{\cos \left(a\right)}^2-1\right)x$

$\mathrm{int}\left(\sin \left(f\right)\,x\right)\;$

$0$

$\mathrm{Normalizer}≔\mathrm{`normal`}\:$