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Mar
29
comment Why is cardinality of set of even numbers = set of whole numbers?
"A number is just a symbol." Perhaps a number can just be a symbol, but normally in mathematics it is more than just a symbol.
Mar
29
comment Why is cardinality of set of even numbers = set of whole numbers?
The notion of "number-density" is definitely wrong for cardinality, but I wonder if it is something used elsewhere in mathematics.
Mar
26
awarded  Autobiographer
Dec
19
comment What are some applications of elementary linear algebra outside of math?
It's not just important for 3D graphics. It is also important for 2D graphics. It could probably be applied to any xD graphics, but 2D and 3D are the ones most likely encountered.
Apr
18
comment How to evaluate trigonometric functions by pen and paper?
The part "For example around 1400 Islamic mathematicians" should include commas like "For example, around 1400, Islamic mathematicians" to clarify the meaning. Otherwise, it sounds like you're talking about 1400 mathematicians.
Dec
12
awarded  Supporter