- bcmul: documentation ( source)
- printf: documentation ( source)
<?php
$t = -0.07722108145106092170;
$t2 = bcmul($t, $t, 40);
$t3 = bcmul($t2, $t, 40);
$t4 = bcmul($t3, $t, 80);
printf("bcmath t2: %s\n", $t2);
printf("bcmath t3: %s\n", $t3);
printf("bcmath t4: %s\n", $t4);