Christoff Rudolff was a German mathematician who introduced the radical sign in 1525
Invented by English mathematician Robert Recorde. That's all i know.
The equals sign = was invented in 1557 by Welsh mathematician Robert Recorde. In his book, The Whetstone of Witte, he wrote, "To avoid the tedious repetition of these words: is equal to; I will set a pair of parallel lines thus, =, because no two things can be more equal.
It is attributed to the Welsh mathematician Robert Recorde.
The plus or addition sign was invented by Michael Stiple in 1544
archimedes
Christoff Rudolff was a German mathematician who introduced the radical sign in 1525
Invented by English mathematician Robert Recorde. That's all i know.
Robert Recorde, who designed the equals sign, introduced plus and minus in 1557. Brahmagupta was an Indian mathematician who invented the multiplication sign around the 19th century. Johann Rahn first used the division sign in his book Teutshe algebra in 1659.
it was Leonhard Euler, the 18th century Swiss mathematician, who invented the square root sign. However, the concept of square roots was known to the Greeks long before that around the time when Archimedes lived.
William Oughtred
A Welsh mathematician named Robert Recorde.
The equals sign = was invented in 1557 by Welsh mathematician Robert Recorde. In his book, The Whetstone of Witte, he wrote, "To avoid the tedious repetition of these words: is equal to; I will set a pair of parallel lines thus, =, because no two things can be more equal.
You don't divide by a sign. You might divide by -1, which just changes the overall sign (because you multply by -1 to get back again. Dividing or multiplying with a positive sign, means divide or multiply by plus 1: leave any existing sign as it is .
The addition sign was invented in Oakland California.
It was first used in a algebra book called " Teutshe algebra" in 1659. The author was a man named Johann Rahn.
It is attributed to the Welsh mathematician Robert Recorde.