setprec

setprec([n])

:: Sets the precision for bigfloat operations to n digits.

return

integer

n

integer

• When an argument is given, it sets the precision for bigfloat operations to n digits. The return value is always the previous precision in digits regardless of the existence of an argument.
• Bigfloat operations are done by PARI. (See section pari)
• This is effective for computations in bigfloat. Refer to ctrl() for turning on the `bigfloat flag.'
• There is no upper limit for precision digits. It sets the precision to some digits around the specified precision. Therefore, it is safe to specify a larger value.

[1] setprec();
9
[2] setprec(100);
9
[3] setprec(100);
96

section ctrl, section eval, deval, section pari.

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