Was gonan say... but /sometimes/ you jsut want a nice handy reference. because no matter how many times you punch it it..... It still doesn't sink into your head. For me it's usually 2 seconds after I've done anotehr calculation. o.<Was gonan say... but /sometimes/ you jsut want a nice handy reference. because no matter how many times you punch it it..... It still doesn't sink into your head. For me it's usually 2 seconds after I've done anotehr calculation. o.<