The Basic on Luxor’s ABC machines supports a global mode, DOUBLE or SINGLE, and also supports fixed-point arithmetic in strings, up to 125 digits. So, offering two binary and one decimal format!
As there’s a performance penalty for multiplication, I’d expect log and trig to be especially slow on a decimal Basic: we could perhaps say that decimal suits a commercial application, and binary suits a scientific application. Benchmarks in popular magazines tended to the scientific.