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He was a sixteenth century mathematician, born in Jawor (now in southwestern Poland) who wrote the first book on algebra in the German language. He studied at the University of Vienna. He invented the symbol we now use for square root, and also was the first to define the zero power to equal one.

Q: Who is Christoff Rudolff?

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Radicals were first used in 1525 in Die Cross. They were first used by Christoff Rudolff, who was a German mathematician.

According to Wikipedia, article on "Square root": "The symbol 'âˆš' for the square root was first used in print in 1525 in Christoph Rudolff's Coss, which was also the first to use the then-new signs '+' and 'âˆ’'."

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Christoff Rudolff

Christoff Rudolff in 1525.

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Christoff Rudolff was a German mathematician who introduced the radical sign in 1525

it's the book of Christoff Rudolff's Die Coss

Christoff RudolffThe radical symbol first appeared in 1525 in Die Coss by Christoff Rudolff (1499-1545). He used the symbol (without the vinculum) for square roots.

Radicals were first used in 1525 in Die Cross. They were first used by Christoff Rudolff, who was a German mathematician.

The radical symbol for square root, without the vinculum above the radicand, was introduced in 1525. The first author to use it was Christoff Rudolff.

Rudolff introduces the radical sign in 1525.

Gerald Rudolff Ford was born on 1890-12-09.

Gerald Rudolff Ford died on 1962-01-26.