As the condition is less acknowledged than dyslexia, dyscalculia is not as present when it comes to information and resources on websites and blogs. Dyslexics, for example, can find extensive lists of famous people who have or were reported to have had dyslexia. Dyscalculics are left more on their own when looking for such sources of encouragement and inspiration.
Plenty of famous people in history are supposed to have been dyslexic. Even though it appears some of these assertions are conjecture, there is no doubt that you can find many successful dyslexic folks in all fields and disciplines. Even a shortlist of a few modern-day dyslexics includes some impressive names.