what is the name of a famous female Mathematicians that came up with something usful for math?

Answer 1

Try this website...there is a long list of women who have contributed to math.

http://www.agnesscott.edu/lriddle/women/alpha.htm

Answer 2

Emmy Noether who, amongst other things, developed what is now known as Noether's theorem. This theorem expresses the correspondence between symmetries and physical conservation laws. She was noted by Albert Einstein as "in the judgment of the most competent living mathematicians, ... the most significant creative mathematical genius thus far produced since the higher education of women began."

Answer 3

Sophie Germain

One of her most noticeable contributions was the Sophie Germain Identity, named after herself:

x^4 + 4y^4 = (x^2 + 2y^2 + 2xy)(x^2 + 2y^2 - 2xy)

Answer 4

No one has yet mentioned Emmy Noether,
who did fantastic work in abstract algebra
in the early 20th century.

Answer 5

Ada Lovelace, who was the first computer programmer. She worked with C. Babbage and wrote the first ever programs for his analog computer in the early 1800's. (She was the only legitimate offspring of the poet Lord Byron.)

She should get more credit then she does for her work in the narrrow logic paths computers use.