PyPy shouldn't use cython
PyPy doesn't work with gmpy
Mathcis now installs, but we need an alternative for gmpy
display gmpy version only when present
Replace gmpy with sympy in core.numbers
further replace gmpy with sympy
fix typos and missed changes
more progress replacing gmpy with sympy, PyPy is failing on compiled regex
Replace gmpy.bincoef with mpmath.binomial
replace mpmath with sympy in mathics.builtin.integer
Tests complete withought raising Exceptions: 1787 Tests for 389 built-in symbols, 1540 passed, 247 failed.
add correct numeric representations, 1610 passed, 177 failed.
fix PyPy mathicsserver bug (see https://bugs.pypy.org/issue1116)
fix some complex arithmetic bugs, 1627 passed, 160 failed
some numeric tweaks, 1630 passed, 157 failed
Add tests to ensure Plus and Times recognise complex numbers
Fix Power, 1639 passed, 151 failed
Fix Real and remove manual sympy bugfix,
All tests run properly in PyPy - In half the time as CPython!
1646 passed, 143 failed
fix Round issue
Fix E constant
don't rely on .value for numbers