m_apm_is_integer
extern int m_apm_is_integer(M_APM);
{return m_apm_is_integer(cval());}
if (m_apm_is_integer(bb)) /* if integer, we're done */
if (m_apm_is_integer(bb)) /* if integer, we're done */
if ((m_apm_is_integer(u) + m_apm_is_integer(v)) != 2)
if (m_apm_is_integer(yy))