Fredrik Johansson questions

Fredrik Johansson answers

• alternatives or speedups for mpmath matrix inversion
• How does sympy calculate pi?
• Ball arithmetic vs interval arithmetic
• Significant figures in the decimal module
• Efficient evaluation of hypergeometric functions
• Is there a scaled complementary error function in python available?
• How do I manipulate bits in Python?
• Writing your own square root function
• What's the canonical way to check for type in Python?