a= newDecimal("890.12")
a+10 echo $a ... 900.12 a+=10 echo $a ... 910.12 a-10 echo $a ... 900.12 a-=10
echo $a ... 890.12etc....
a= newDecimal("890.12")
a+10 echo $a ... 900.12 a+=10 echo $a ... 910.12 a-10 echo $a ... 900.12 a-=10
echo $a ... 890.12etc....