Von Neumann, a noted lightning calculator, kept up with the computer and checked its results with a paper and pencil.

Since he didn't explain his method, he got a reputation for being a lightning calculator, an idiot-savant talent, like Libby.

In 1789 he described the abilities of Thomas Fuller, a lightning calculator.

He is a high level genius and a lightning calculator.

True enough, my father was a lightning calculator and an expert at solving arithmetical puzzles.

He doesn't need to be a lightning calculator to figure who finished Myram.

He quit school in the third grade (age 9) and pursued a career as a lightning calculator.

I'm not a lightning calculator, that is.

"Are you a lightning calculator?"

I had Roland down as either a natural lightning calculator or a microcalc implantee.