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Jun
27
answered Negative exponents and positive numbers.
Jun
27
answered How is the area of a circle calculated using basic mathematics?
Jun
27
answered Non-example for vector space
Jun
27
answered Can ∂x and ∂y in a derivate be seen as ∂ times x or ∂ times y?
Jun
18
answered How to generate a random number between 1 and 10 with a six-sided die?
Jun
8
answered Imitating smaller Rubik's cubes with bigger ones.
May
15
answered What are the “building blocks” of a vector?
May
14
answered If $ab=ba$, Prove $a^2$ commutes with $b^2$
May
12
answered Is an irrational number odd or even?
May
12
answered How to Formulate this Linear Algebra Fact in a Coordinate Free way?
May
9
answered Turing Machine Halting problem
May
4
answered $\langle A,B\rangle = \operatorname{tr}(B^*A)$
May
3
answered If $ f $ is injective and $ g $ is injective, then $ f \circ g $ is surjective.
May
3
answered Can we have a one-one function from [0,1] to the set of irrational numbers?
May
2
answered Intersection of two sets which are equivalence on set A is always equivalence?
May
2
answered Give an example to show that convergence of $|x_n|$ does not imply the convergence of $x_n$
May
2
answered What does it mean for two matrices to be orthogonal?
May
2
answered why are equivalence relations called so?
May
2
answered $\text{Alt}\,(\phi_1 \otimes \phi_2 \otimes \phi_3)$
May
2
answered Why is a “reverse surjection” incorrect?