The Abacus is ancient and the inventor of the original is unknown. Lee Kai Chen did however invent an improved abacus with a movable decimal point and two auxiliary fields for use in complex operations. This abacus was named after himself.
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∙ 15y agoUnknown, it was before written history. however lee kai chen invented an improved version with decimal points.
Leira pronuonced lee-ar-a
my name is Sean lee
Sean Lee
Sheree, Marie, and Lee
Unknown, it was before written history. however lee kai chen invented an improved version with decimal points.
Lee Si-Chen was born in 1952.
Kai-Fu Lee was born in 1961.
Lee Chen-Chang was born on 1986-10-21.
Chen-Yuan Lee was born on 1915-12-04.
Chen-Yuan Lee died on 2001-11-02.
MLB player Chen-Chang Lee is 5'-11''.
Chen-Chang Lee plays for the Cleveland Indians.
Chen-Chang Lee is a relief pitcher for the Cleveland Indians.
Loren Lee Chen is 5' 9 1/2".
MLB player Chen-Chang Lee bats right.
MLB player Chen-Chang Lee throws right.