* In 1988 she returned to the US to have her abilities studied by Arthur Jensen, a professor of psychology at the University of California, Berkeley.
This event is mentioned in the 1982 Guinness Book of Records. * On June 18, 1980, she demonstrated the multiplication of two 13-digit numbers 7,686,369,774,870 × 2,465,099,745,779 picked at random by the Computer Department of Imperial College, London. Bureau of Standards by the Univac 1101 computer, for which a special program had to be written to perform such a large calculation. Her answer-546,372,891-was confirmed by calculations done at the U.S. That same year, at the Southern Methodist University she was asked to give the 23rd root of a 201-digit number she answered in 50 seconds. * In 1977 in USA she competed with a computer to see who gives the cube root of 188132517 faster, she won.
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