ако log 2  0.3010 и log 3  0.4771 тогава стойността на log 4.5 е:
"log 3 + log 3  log ( 3 * 3 ) - > log 9  0.4771 + 0.4771  0.9542 сега log 9 - log 2  log ( 9 / 2 )  log 4.5 - > log 4.5  0.9542 - 0.3010  0.6532 отговор : a"
multiply(0.3010, divide(0.3010, 0.4771))