`setprec'
---------

setprec([N])
     :: bigfloat η N ꤹ.

RETURN
     
N
     

   * , bigfloat η N ꤹ. Τʤ
     ˤ餺, ꤵƤ֤ͤ.
   * bigfloat η׻ PARI (*Note pari::) ˤäƹԤ.
   * bigfloat Ǥη׻ФͭǤ. bigfloat  flag  on ˤ
     ˡ, `ctrl' 򻲾.
   * Ǥ˾¤Ϥʤ, ꤷꤵȤϸ¤
     . 礭ͤꤹΤǤ.

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


     `ctrl', `eval', `pari'

