Revision history [back]
 | 1 | initial version |
Have a look at real or complex ball fields, which keep track of approximation error.
sage: x = exp(12*pi*i*i)
sage: RBF(x)
[+/- 67.1]
sage: 5 + RBF(x) # not accurate enough
[+/- 72.1]
sage: 5 + RealBallField(80)(x) # more precision
[5.00000 +/- 1.75e-6]