/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 63% cpu 0.002 total
bc -l  8.62s user 0.00s system 99% cpu 8.621 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 71% cpu 0.002 total
bc -l  8.70s user 0.00s system 99% cpu 8.706 total
tail -1  0.00s user 0.00s system 0% cpu 8.705 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 61% cpu 0.002 total
bc -l  8.63s user 0.00s system 99% cpu 8.635 total
tail -1  0.00s user 0.00s system 0% cpu 8.635 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 64% cpu 0.002 total
bc -l  8.67s user 0.00s system 99% cpu 8.676 total
tail -1  0.00s user 0.00s system 0% cpu 8.675 total
root@sid:/var/www/debian/bc# # ^ CLANG v GCC
zsh: command not found: #
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 76% cpu 0.002 total
bc -l  10.00s user 0.00s system 99% cpu 10.007 total
tail -1  0.00s user 0.00s system 0% cpu 10.006 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 70% cpu 0.002 total
bc -l  9.93s user 0.03s system 99% cpu 9.968 total
tail -1  0.00s user 0.00s system 0% cpu 9.967 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 62% cpu 0.002 total
bc -l  9.80s user 0.00s system 99% cpu 9.798 total
tail -1  0.00s user 0.00s system 0% cpu 9.798 total
root@sid:/var/www/debian/bc# time /bin/echo "scale=3000;4*a(1)" | bc -l |tail -1
6494231960
/bin/echo "scale=3000;4*a(1)"  0.00s user 0.00s system 78% cpu 0.002 total
bc -l  9.80s user 0.00s system 99% cpu 9.799 total
tail -1  0.00s user 0.00s system 0% cpu 9.799 total