#!/bin/bash # Calculate large exponent # $1 = c $2 = d $3 = n # # calculate c^d%n date=`date | sed 's\:\_\g' | sed 's\ \_\g'` # create a bc script to calculate this. # php5 is sopposed to have bc embedded... # cat calc_big_expon.bc > calc_big_expon.$$.$date.bc echo "t($1,$2,$3)" >> calc_big_expon.$$.$date.bc echo "r;" >> calc_big_expon.$$.$date.bc bc < calc_big_expon.$$.$date.bc | tail -1 rm -rf calc_big_expon.$$.$date.bc