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Shuri2060
  • Member for 7 years, 2 months
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17 votes
4 answers
4k views

What is the term given to two functions when their order of composition does not matter?

12 votes
2 answers
2k views

What shape do we get when we shear an ellipse? And more generally, do affine transformations always map conic sections to conic sections?

7 votes
1 answer
237 views

Replacement only when 'prize' is found

5 votes
2 answers
192 views

What does the Outer automorphism group act on? If an automorphism preserves conjugacy classes, is it inner?

5 votes
0 answers
85 views

Is $\int^0_0 x^{-1} dx$ defined? [duplicate]

5 votes
3 answers
5k views

How do I find the area of a general closed curve? (And then generalisation to multiple dimensions)

5 votes
1 answer
128 views

Algebraic shortcut to find $a^n + b ^n$?

4 votes
1 answer
3k views

A nice way to do Euler's method on a calculator?

3 votes
0 answers
99 views

Why is this argument incorrect for the Envelope Paradox [duplicate]

3 votes
1 answer
61 views

Pointwise stabiliser of a union of orbits is a normal subgroup

3 votes
1 answer
57 views

Can the common linear transformations be defined using the characteristic equation?

3 votes
1 answer
296 views

Maximizing an expression with floor functions

2 votes
1 answer
148 views

Are there more quadratics with real roots or more with complex roots? Or the same?

2 votes
2 answers
8k views

Asymptote to $\frac{\sin x}{x}$?

2 votes
1 answer
75 views

Minimize $f(x, y, z) = \frac{a}{x} + \frac{b}{y} +\frac{c}{z}$ with $x+y+z=1$

1 vote
0 answers
53 views

Series converges conditionally only if ratio test fails?

1 vote
1 answer
372 views

Singularity of sin x / x

1 vote
1 answer
269 views

Is there a word describing the derivatives of an object's motion?

1 vote
2 answers
488 views

Is the composition of the differentiating operator commutative?

1 vote
0 answers
235 views

Induction in the Reals?

1 vote
4 answers
143 views

Is the way that Mathematicians have categorised the Linear Transformations ideal, or could we perhaps have done better?

1 vote
0 answers
66 views

Check for the validity an 'unusual' proof for an inequality

1 vote
1 answer
1k views

Is 0 recurring allowed in repeating decimals?

1 vote
2 answers
819 views

Symbol for 'implies and is not implied by'?

1 vote
1 answer
142 views

Why isn't Composition of Functions defined to be a Partial Binary Operation on the set of all functions?

0 votes
1 answer
60 views

Trouble interpreting implicit qualifiers in statement

0 votes
1 answer
88 views

Integrating $\arccos(f(x))$

0 votes
1 answer
656 views

Can all affine transformations be just expressed as a combination of the common transformations we are taught?

0 votes
2 answers
43 views

What does Naturals to the omega mean?

0 votes
0 answers
60 views

Notation to differentiate between 'which implies' and 'implies'?