https://liberty.io/user-carsten-s-mathematics-stack-exchange.htmlBuzz Spill Dailyen2026-09-05T20:18:57-04:00User Carsten S - Mathematics Stack Exchangehttps://liberty.io/drawing-an-ellipse.htmlBuzz Spill Dailyen2026-09-05T20:13:29-04:00Drawing an ellipsehttps://liberty.io/calculating-inverse-of-trig-functions-without-calculator-closed.htmlBuzz Spill Dailyen2026-09-05T20:12:15-04:00Calculating inverse of trig functions without calculator [closed]https://liberty.io/qr-factorization-of-complex-matrix.htmlBuzz Spill Dailyen2026-09-05T20:10:22-04:00QR factorization of complex matrixhttps://liberty.io/gay-speed-dating-problem.htmlBuzz Spill Dailyen2026-09-05T20:07:38-04:00Gay Speed Dating Problemhttps://liberty.io/when-does-the-tangent-line-to-the-sine-curve-pass-through-the-origin.htmlBuzz Spill Dailyen2026-09-05T19:55:56-04:00When does the tangent line to the sine curve pass through the origin?https://liberty.io/are-there-different-kinds-of-invalid-arguments.htmlBuzz Spill Dailyen2026-09-05T19:27:05-04:00Are there different kinds of invalid arguments?https://liberty.io/proving-that-the-number-sqrt-3-7-sqrt-50-sqrt-3-7-5-sqrt-2-is-rational.htmlBuzz Spill Dailyen2026-09-05T19:21:22-04:00Proving that the number $\sqrt[3]{7 + \sqrt{50}} + \sqrt[3]{7 - 5\sqrt{2}}$ is rationalhttps://liberty.io/calc-of-potential-function-using-line-integral.htmlBuzz Spill Dailyen2026-09-05T19:16:20-04:00Calc of potential function using line integralhttps://liberty.io/what-is-the-reason-we-usually-don-039-t-use-formal-proofs-in-mathemati.htmlBuzz Spill Dailyen2026-09-05T19:09:11-04:00What is the reason we usually don't use formal proofs in mathematics?https://liberty.io/usefulness-of-the-characteristic-function-set-theory.htmlBuzz Spill Dailyen2026-09-05T18:37:12-04:00Usefulness of the characteristic function (set-theory)https://liberty.io/solving-the-following-volterra-integral-equation.htmlBuzz Spill Dailyen2026-09-05T18:21:35-04:00Solving the following Volterra Integral Equation?https://liberty.io/the-jth-factorial-moment-of-x-geo-p-duplicate.htmlBuzz Spill Dailyen2026-09-05T18:15:23-04:00The jth factorial moment of X ~ Geo(p) [duplicate]https://liberty.io/three-simultaneously-diagonalizable-matrices.htmlBuzz Spill Dailyen2026-09-05T18:14:16-04:00Three Simultaneously Diagonalizable Matriceshttps://liberty.io/prove-by-mathematical-induction-that-n-3-n-is-divisible-by-3-for-all-n.htmlBuzz Spill Dailyen2026-09-05T18:11:53-04:00Prove by mathematical induction that $n^3 - n$ is divisible by $3$ for all natural number $n$https://liberty.io/vector-magnitude-notation.htmlBuzz Spill Dailyen2026-09-05T18:11:28-04:00Vector magnitude notationhttps://liberty.io/calculating-the-norm-of-a-matrix-in-matlab.htmlBuzz Spill Dailyen2026-09-05T18:10:05-04:00Calculating the norm of a matrix in matlabhttps://liberty.io/is-the-nash-embedding-theorem-a-special-case-of-the-whitney-embedding-.htmlBuzz Spill Dailyen2026-09-05T18:03:28-04:00Is the Nash Embedding Theorem a special case of the Whitney Embedding Theorem?https://liberty.io/square-roots-variables-with-exponents.htmlBuzz Spill Dailyen2026-09-05T17:51:17-04:00Square Roots: Variables with Exponents.https://liberty.io/over-which-interval-does-f-x-have-a-negative-average-rate-of-change.htmlBuzz Spill Dailyen2026-09-05T17:50:55-04:00Over which interval does f(x) have a negative average rate of change?https://liberty.io/characteristic-equation-of-differential-equation.htmlBuzz Spill Dailyen2026-09-05T17:42:59-04:00characteristic equation of differential equationhttps://liberty.io/why-is-x-4-16x-2-4-irreducible-in-mathbb-q-x.htmlBuzz Spill Dailyen2026-09-05T17:40:37-04:00Why is $X^4-16X^2+4$ irreducible in $\mathbb{Q}[X]$?https://liberty.io/understanding-a-riddle-how-many-flowers-in-a-bouquet-if-all-but-two-ar.htmlBuzz Spill Dailyen2026-09-05T17:37:09-04:00Understanding a riddle: How many flowers in a bouquet, if all but two are roses, all but two are tulips, and all but two are daisies?https://liberty.io/what-is-the-best-way-to-arrange-trapezoidable-bricks-to-form-a-giant-c.htmlBuzz Spill Dailyen2026-09-05T17:36:02-04:00What is the best way to arrange trapezoidable bricks to form a giant circle?https://liberty.io/surface-area-of-a-cylinders-and-prisms.htmlBuzz Spill Dailyen2026-09-05T17:31:05-04:00Surface area of a cylinders and prismshttps://liberty.io/geometry-find-angle-x-in-triangle.htmlBuzz Spill Dailyen2026-09-05T17:27:06-04:00Geometry: Find angle x in trianglehttps://liberty.io/what-books-must-every-math-undergraduate-read.htmlBuzz Spill Dailyen2026-09-05T17:19:16-04:00What books must every math undergraduate read?https://liberty.io/when-to-connect-points-on-a-graph.htmlBuzz Spill Dailyen2026-09-05T16:57:55-04:00When to connect points on a graph?https://liberty.io/filling-in-the-blanks-on-a-magic-triangle.htmlBuzz Spill Dailyen2026-09-05T16:54:51-04:00Filling in the blanks on a magic trianglehttps://liberty.io/what-does-it-mean-when-a-function-is-finite.htmlBuzz Spill Dailyen2026-09-05T16:54:50-04:00What does it mean when a function is finite?https://liberty.io/brezis-functional-analysis-exercise-2-4.htmlBuzz Spill Dailyen2026-09-05T16:45:32-04:00Brezis Functional Analysis Exercise 2.4https://liberty.io/are-all-polynomial-expressions-an-algebraic-expression.htmlBuzz Spill Dailyen2026-09-05T16:40:31-04:00Are all polynomial expressions an algebraic expression.https://liberty.io/how-to-find-all-primitive-triples-a-b-c-pythagorean-triples.htmlBuzz Spill Dailyen2026-09-05T16:34:48-04:00How to find all primitive triples (a,b,c)? (Pythagorean Triples)https://liberty.io/solving-system-of-equations-with-complex-numbers.htmlBuzz Spill Dailyen2026-09-05T16:16:32-04:00Solving system of equations with complex numbershttps://liberty.io/critiques-on-proof-showing-sqrt-12-is-irrational.htmlBuzz Spill Dailyen2026-09-05T16:14:14-04:00Critiques on proof showing $\sqrt{12}$ is irrational.https://liberty.io/find-the-length-of-de.htmlBuzz Spill Dailyen2026-09-05T16:12:26-04:00Find the length of $DE$https://liberty.io/is-0-1-km-equals-to-100-0-m-in-context-to-significant-figures.htmlBuzz Spill Dailyen2026-09-05T16:08:09-04:00Is 0.1 km equals to 100.0 m (in context to significant figures)?https://liberty.io/computing-limit-of-1-1-n-n-2.htmlBuzz Spill Dailyen2026-09-05T15:59:31-04:00Computing limit of $(1+1/n)^{n^2}$https://liberty.io/how-to-prove-that-frac-ln-5-ln-2-is-irrational.htmlBuzz Spill Dailyen2026-09-05T15:58:06-04:00How to prove that $\frac{\ln 5}{\ln 2}$ is irrationalhttps://liberty.io/help-required-in-finding-determinant-using-characteristic-equation.htmlBuzz Spill Dailyen2026-09-05T15:56:44-04:00Help required in finding determinant using characteristic equation.https://liberty.io/sketch-the-graph-x-e-t-sin-t-t-ge-0.htmlBuzz Spill Dailyen2026-09-05T15:52:25-04:00Sketch the graph $x=e^{-t}\sin t$,$ t\ge 0$https://liberty.io/sketch-the-phase-line-of-ode-frac-dx-dt-f-t-x.htmlBuzz Spill Dailyen2026-09-05T15:41:54-04:00Sketch the phase line of ODE: $\frac{dx}{dt}=f(t,x)$https://liberty.io/finding-the-length-of-a-helix.htmlBuzz Spill Dailyen2026-09-05T15:38:57-04:00Finding the length of a helixhttps://liberty.io/three-altitudes-of-a-triangle-are-concurrent.htmlBuzz Spill Dailyen2026-09-05T15:33:43-04:00Three Altitudes of a triangle are concurrenthttps://liberty.io/are-there-infinite-many-primes-p-such-that-2p-1-is-also-prime.htmlBuzz Spill Dailyen2026-09-05T15:29:51-04:00Are there infinite many primes p such that 2p-1 is also prime?https://liberty.io/how-many-degrees-of-freedom-does-a-line-have-on-a-plane.htmlBuzz Spill Dailyen2026-09-05T15:27:54-04:00How many degrees of freedom does a line have on a plane?https://liberty.io/integral-of-product-of-two-functions-in-terms-of-the-integral-of-the-o.htmlBuzz Spill Dailyen2026-09-05T15:14:39-04:00Integral of product of two functions in terms of the integral of the other functionhttps://liberty.io/proof-that-the-sum-of-two-gaussian-variables-is-another-gaussian.htmlBuzz Spill Dailyen2026-09-05T14:52:51-04:00Proof that the sum of two Gaussian variables is another Gaussianhttps://liberty.io/how-many-4-digit-even-numbers-have-all-4-digits-distinct.htmlBuzz Spill Dailyen2026-09-05T14:45:33-04:00How many $4$ digit even numbers have all $4$ digits distinct?https://liberty.io/how-to-increase-mean-of-set-of-numbers.htmlBuzz Spill Dailyen2026-09-05T14:41:51-04:00How to increase mean of set of numbershttps://liberty.io/why-do-we-study-polish-spaces.htmlBuzz Spill Dailyen2026-09-05T14:40:57-04:00Why do we study Polish spaces?https://liberty.io/tensor-calculus.htmlBuzz Spill Dailyen2026-09-05T14:40:54-04:00Tensor Calculushttps://liberty.io/when-an-expression-has-double-brackets-in-it-x-what-type-of-expression.htmlBuzz Spill Dailyen2026-09-05T14:40:09-04:00When an expression has double brackets in it ($[[x]]$), what type of expression is this? [closed]https://liberty.io/why-aren-039-t-repeating-decimals-irrational-but-something-like-pi-is.htmlBuzz Spill Dailyen2026-09-05T14:38:34-04:00Why aren't repeating decimals irrational but something like $\pi$ is?https://liberty.io/int-e-mean-what-does-int-mean.htmlBuzz Spill Dailyen2026-09-05T14:36:31-04:00Int(E) mean ? what does Int meanhttps://liberty.io/arbitrary-matrices-solving.htmlBuzz Spill Dailyen2026-09-05T14:26:19-04:00Arbitrary Matrices Solvinghttps://liberty.io/find-the-derivative-at-the-point-1-ln-pi-4-of-x-arctan-x-e-y.htmlBuzz Spill Dailyen2026-09-05T14:25:26-04:00Find the derivative at the point $(1, \ln(\pi/4))$ of $x \arctan x = e^y$.https://liberty.io/uniqueness-proof-discrete-math-help.htmlBuzz Spill Dailyen2026-09-05T14:24:05-04:00Uniqueness Proof, Discrete Math Helphttps://liberty.io/proving-the-volume-of-a-cone.htmlBuzz Spill Dailyen2026-09-05T14:20:19-04:00Proving the volume of a conehttps://liberty.io/calculating-the-number-of-subintervals-required-for-the-difference-bet.htmlBuzz Spill Dailyen2026-09-05T14:12:26-04:00Calculating the number of subintervals required for the difference between the Upper and Lower Riemann sum to a particular valuehttps://liberty.io/derivation-of-cubic-formula-closed.htmlBuzz Spill Dailyen2026-09-05T14:09:20-04:00Derivation of Cubic Formula [closed]https://liberty.io/topological-invariants.htmlBuzz Spill Dailyen2026-09-05T14:05:56-04:00Topological invariantshttps://liberty.io/what-is-the-integral-of-function-f-x-sin-x-x.htmlBuzz Spill Dailyen2026-09-05T14:03:47-04:00What is the integral of function $f(x) = (\sin x)/x$https://liberty.io/question-from-putnam-039-89-primes-of-the-form-101-ldots01.htmlBuzz Spill Dailyen2026-09-05T13:59:16-04:00Question from Putnam '89: Primes of the form $101\ldots01$https://liberty.io/math-conversion-question-1km-0-6214mi-and-1gal-3-78l.htmlBuzz Spill Dailyen2026-09-05T13:47:59-04:00Math Conversion Question 1km=0.6214mi and 1gal=3.78L.https://liberty.io/finding-the-parallel-sides-of-a-trapezoid-given-all-side-lengths-and-h.htmlBuzz Spill Dailyen2026-09-05T13:38:22-04:00Finding the parallel sides of a trapezoid given all side lengths and height from basehttps://liberty.io/how-can-num2str-function-cut-off-some-digits-in-matlab.htmlBuzz Spill Dailyen2026-09-05T13:29:53-04:00How can num2str function cut off some digits in Matlab?https://liberty.io/obtain-equation-of-right-circular-cylinder.htmlBuzz Spill Dailyen2026-09-05T13:23:15-04:00Obtain equation of right circular cylinderhttps://liberty.io/find-the-area-of-a-triangle-given-the-coordinates-of-its-vertices.htmlBuzz Spill Dailyen2026-09-05T13:11:03-04:00Find the area of a triangle given the coordinates of its verticeshttps://liberty.io/conic-sections-parabola-what-is-p.htmlBuzz Spill Dailyen2026-09-05T12:50:59-04:00Conic sections: Parabola - What is $p$?https://liberty.io/matrix-addition-multiplication-with-different-sizes.htmlBuzz Spill Dailyen2026-09-05T12:47:26-04:00Matrix addition/multiplication with different sizeshttps://liberty.io/what-is-the-exact-definition-of-an-inverse-function.htmlBuzz Spill Dailyen2026-09-05T12:47:09-04:00What is the exact definition of an inverse function?https://liberty.io/trigonometric-quadratic-formula-and-other-trig-solutions-for-roots-of-.htmlBuzz Spill Dailyen2026-09-05T12:41:47-04:00Trigonometric quadratic formula? And other trig solutions for roots of polynomials?https://liberty.io/is-there-a-power-series-with-0-radius-of-convergence.htmlBuzz Spill Dailyen2026-09-05T12:39:33-04:00Is there a power series with $0$ radius of convergence?https://liberty.io/order-of-integration-in-triple-integral.htmlBuzz Spill Dailyen2026-09-05T12:39:13-04:00Order of integration in triple integralhttps://liberty.io/explanation-of-line-element-formula-dl-2-dx-2-dy-2.htmlBuzz Spill Dailyen2026-09-05T12:28:39-04:00Explanation of line element formula $dl^2 = dx^2 + dy^2$https://liberty.io/grouping-numbers-that-are-close-to-each-other.htmlBuzz Spill Dailyen2026-09-05T12:28:17-04:00Grouping numbers that are "close to each other"https://liberty.io/using-only-the-field-axioms-of-real-numbers-prove-that-1-1-1.htmlBuzz Spill Dailyen2026-09-05T12:25:08-04:00Using only the field axioms of real numbers prove that $(-1)(-1) = 1$https://liberty.io/how-do-we-know-the-ratio-between-circumference-and-diameter-is-the-sam.htmlBuzz Spill Dailyen2026-09-05T12:18:50-04:00How do we know the ratio between circumference and diameter is the same for all circles?https://liberty.io/notation-for-a-constant-vs-a-variable.htmlBuzz Spill Dailyen2026-09-05T12:17:51-04:00Notation for a constant vs a variable?https://liberty.io/what-does-it-really-mean-for-a-metric-space-to-be-compact-duplicate.htmlBuzz Spill Dailyen2026-09-05T12:14:40-04:00What does it REALLY mean for a metric space to be compact? [duplicate]https://liberty.io/how-many-numbers-are-in-this-set.htmlBuzz Spill Dailyen2026-09-05T12:14:23-04:00How many numbers are in this set?https://liberty.io/graphing-a-tangent-function-with-an-amplitude.htmlBuzz Spill Dailyen2026-09-05T12:08:21-04:00Graphing a tangent function with an amplitudehttps://liberty.io/ratio-of-angles-in-a-triangle-given-lengths-of-triangle-039-s-sides-cl.htmlBuzz Spill Dailyen2026-09-05T12:03:56-04:00Ratio of angles in a triangle, given lengths of triangle's sides. [closed]https://liberty.io/why-zn-integers-modulo-n-under-multiplication-is-a-group-if-and-only-i.htmlBuzz Spill Dailyen2026-09-05T11:57:20-04:00Why (Zn,*), integers modulo n under multiplication, is a group if and only if n is prime?https://liberty.io/use-the-sum-identity-and-double-identity-for-sine-to-find-sin-3x.htmlBuzz Spill Dailyen2026-09-05T11:57:16-04:00Use the sum identity and double identity for sine to find $\sin 3x$.https://liberty.io/lim-x-to-0-sin-x-tan-x.htmlBuzz Spill Dailyen2026-09-05T11:41:52-04:00$\lim_{x\to 0^+} (\sin x)^ {\tan x}$https://liberty.io/find-the-subgroups-of-a4.htmlBuzz Spill Dailyen2026-09-05T11:37:47-04:00Find the subgroups of A4https://liberty.io/how-find-this-equation-solution-2-sqrt-3-2y-1-y-3-1.htmlBuzz Spill Dailyen2026-09-05T11:33:34-04:00How find this equation solution $2\sqrt[3]{2y-1}=y^3+1$https://liberty.io/what-is-transcendental-equation-function.htmlBuzz Spill Dailyen2026-09-05T11:29:20-04:00What is transcendental equation/function?https://liberty.io/find-the-area-and-perimeter-of-a-segment-of-a-circle.htmlBuzz Spill Dailyen2026-09-05T11:23:44-04:00Find the area and perimeter of a segment of a circlehttps://liberty.io/understanding-rubik-039-s-cube-duplicate.htmlBuzz Spill Dailyen2026-09-05T11:14:17-04:00Understanding Rubik's cube [duplicate]https://liberty.io/when-a-simple-ideal-contained-in-the-sum-of-ideals.htmlBuzz Spill Dailyen2026-09-05T11:12:28-04:00When a simple ideal contained in the sum of idealshttps://liberty.io/finding-the-joint-probability-density-function-of-two-independent-rand.htmlBuzz Spill Dailyen2026-09-05T11:08:56-04:00Finding the joint probability density function of two independent random variableshttps://liberty.io/tangent-plane-and-normal-vector.htmlBuzz Spill Dailyen2026-09-05T10:57:27-04:00Tangent plane and Normal vectorhttps://liberty.io/linearization-of-a-function.htmlBuzz Spill Dailyen2026-09-05T10:50:51-04:00Linearization of a functionhttps://liberty.io/tetrahedral-dice-throw.htmlBuzz Spill Dailyen2026-09-05T10:28:35-04:00Tetrahedral dice throwhttps://liberty.io/from-the-graph-of-the-derivative-f-039-x-make-a-sketch-of-the-original.htmlBuzz Spill Dailyen2026-09-05T10:11:16-04:00From the graph of the derivative $f'(x)$, make a sketch of the original function $f(x)$ and of the second derivative $f''(x)$https://liberty.io/rigorous-definition-of-geometric-similarity.htmlBuzz Spill Dailyen2026-09-05T10:10:29-04:00Rigorous definition of geometric similarity?https://liberty.io/how-do-we-know-what-the-integral-of-sin-x-is.htmlBuzz Spill Dailyen2026-09-05T10:09:30-04:00How do we know what the integral of $\sin (x)$ is?