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Differential Equations

Mixed approximation vs. full approximation for a power series expansion
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Undergrad Mixed approximation vs. full approximation for a power series expansion
Graduate Can Green's Theorem be extended to three dimensions?
  • robert spicuzza
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Undergrad Camera Translations: Find Translation & Rotation
  • _Nate_
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1
Graduate Is There a Better Way to Parametrize a Special Region in n-Dimensional Space?
  • Pere Callahan
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1
Graduate Identity for the cross of a curl?
  • center o bass
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Graduate Def'n of holomorphically convex domain
  • lark
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Graduate Alternate form of Dirac-delta function
  • WilcoRogers
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Undergrad What are the differences between cylindrical and cartesian coordinates?
  • aaaa202
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1
Graduate Roots and Weights in Lie algebras
  • Hymne
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1
Graduate Change of variables in integrand
  • Nick R
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1
Graduate Can You Taylor Expand a Dual Integral with Variable Limits?
  • Hepth
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1
Graduate Differential Forms and Vector Calculus
  • mindarson
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1
Graduate Linear fractional transformation
  • arthurhenry
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1
Undergrad Several equal but different ones (1)?
  • Izy Amisheeva
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6
Graduate How to solve constraint qualification failure
  • tanzl
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1
Graduate How Do Egorov's Theorem and Pointwise Convergence Differ in Measure Theory?
  • phreak
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Graduate Geometric interpretation of \int x f'(x)
  • Stephen Tashi
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1
Graduate JacCalculating Jacobian Matrix for System of Differential Equations
  • bangthatdrum
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1
Graduate Negative Lipschitz (Hölder) exponent: Intuition
  • vale
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1
Graduate How Does Green's Function Simplify Understanding Electromagnetic Equations?
  • AJ Bentley
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Graduate Can a Ball in ℝn Be Proven as a Jordan Region with Zero Volume?
  • sammycaps
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1
How to check monotony of sequence
  • evinda
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11
Graduate How do we calculate the complex integral with poles at 2npi?
  • eljose
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2
Undergrad Area Differential in Cartesian and Polar Coordinates
  • Zap
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13
Triple Integral: $\dfrac{\sqrt{1-x^2}}{2(1+y)}$
  • karush
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3
Graduate Signed measures and uniform integrability
  • qpt
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1
Graduate What is the proof for the functional derivative formula in DFT?
  • Derivator
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1
Graduate Fourier series of a train of gaussians
  • mnb96
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1
Graduate Question about radius of convergence of fractional power series
  • jackmell
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Undergrad The domain of a multivariable function
  • DottZakapa
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6
Undergrad Can the Maximum of Rational Functions Be Split into Separate Maxima?
  • japam
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2
Undergrad Questions about the fundamental thoerem of calculus
  • EchoRush
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10
What is the solution to the exponential series limit problem?
  • juantheron
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3
Function Help - Rolle's Theorem or the Mean Value Theorem?
  • vickon
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2
Graduate Calculating 1D spectrum from 2D spectrum
  • nkinar
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2
How to fully solve this limit evaluation using integration?
  • juantheron
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7
Graduate What is the relationship between angular speed and curl in different systems?
  • Gonzolo
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1
Graduate Fourier Transform of Stochastic Data
  • teilhardo
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1
Graduate Sum of random variables and Fourier transform
  • jostpuur
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1
Graduate Meromorphic Functions on Riemann surfaces
  • lavinia
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1
Graduate Bifurcation and Stability of Equilibria
  • bartieshaw
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1
Graduate Curl and divergence of the conjugate of an holomorphic function
  • Termotanque
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1
Graduate Fourier transform, domains, ranges, L^p-spaces
  • jostpuur
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1
Graduate Could a Non-Euclidean Complex Plane Be Defined Using Differential Geometry?
  • Klaus_Hoffmann
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1
Graduate Showing positivity of an integral
  • hnh
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1
High School Parametric Curves: CAD & Free Software Info
  • andrewdavid
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1
Graduate Using a time gradient to compute velocity
  • HughJass
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1
Graduate Finding the domain of integration in spherical coordinate of a shifted cylinder
  • gsingh2011
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1
Graduate Orthogonality Relationship for Legendre Polynomials in Cylindrical Coordinates
  • Mike706
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1
Graduate Velocity and Flow Analysis: Complex or Real-Which is Best?
  • tecumseh
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1
Graduate Theorems of convergence for sequences?
  • cappygal
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1
Graduate Can Asymptotes Be Defined as Points or Circles in Exotic Topologies?
  • evanghellidis
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1
Graduate How can I integrate an acceleration vector in polar coordinates?
  • AirForceOne
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1
Graduate Solving Tricky Supergaussian-Rician Integral: Methods & Challenges
  • boxkar
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1
Graduate Integral of product of irrational powers
  • niterida
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Graduate Optimal Function for Computational Mesh: Achieving Desired Shape and Flexibility
  • Clausius2
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Graduate Complex Derivative: Directional Derivatives & Complex Variables
  • Skrew
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1
Graduate How do i generalize this result to higher dimensions? (arc length, surface area)
  • okkvlt
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Graduate Find upper limit of improper integral - Numerical Integration
  • architect
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1
Graduate So many notations for derivatives - what's the difference?
  • Rasalhague
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1
Graduate Total derivative of integral seen as a functional, how?
  • birulami
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1
Graduate Cauchy-Riemann equation polar form
  • Ask4material
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1
Explaining the Concept of Triple Integrals in Calculus
  • karush
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7
Undergrad I would like to know the calculation process of this power spectrum
  • arcTomato
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8
Undergrad Continious FT of a rectangle waveform is real valued, but the DFT of it is not?
  • truva
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2
Graduate Diffrent definition of Lebesgue integral Have you ever seen this?
  • lysangc
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1
Graduate Mellin-Perron inverse transform.
  • tpm
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1
Graduate Does the Dirac measure still exist on a complex domain?
  • friend
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1
Undergrad Kalman Filtering for Hobby Rocketry Altimeters
  • krazykarl
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1
Graduate Does \(\frac{\sin(z)}{z}\) Have a Primitive in \(\mathbb{C} \setminus \{0\}\)?
  • noamriemer
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1
Graduate Why was the higher order derivative defined this way?
  • cliowa
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1
Graduate Computing the Jacobian matrix for a solar system simulation
  • doonzy
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1
Graduate Showing that the set of convergent sequences is not separable
  • antm88
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1
Graduate Derivative of this bicubic interpolation kernel
  • pamparana
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1
Graduate Calculating Volume of Solid with Isosceles Right Triangular Cross-Sections
  • kreil
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1
Undergrad Gaussian Quadrature on a Repeated Integral
  • olukelliot
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3
Undergrad When we can change a sum to an integral?
  • fxdung
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6
Graduate Is Borel Resummation Always Useful?
  • Karlisbad
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1
Graduate How to get (Taylor) series formula for arcosh?
  • swampwiz
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1
Graduate Why Can't I Use Jordan's Lemma to Compute This Improper Integral?
  • cyril14
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1
Graduate Book recs please - complex analysis, riemann surfaces, multi-valued functions
  • bb16
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2
Graduate Can x*log(x) Be Approximated As x Approaches 0?
  • jostpuur
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1
Graduate Calculate Diameter of an Icosahedron from Cross-sectional Widths
  • botbml
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1
Graduate Does Zero Volume Indicate Zero Curl in Vector Fields?
  • rockyshephear
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1
Undergrad How do max/min problems relate to other mathematical concepts?
  • Physics197
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1
Graduate What Is the General Form of the Third Partial Derivative Test?
  • rvadd
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1
Graduate What Is the Covariant Derivative and How Can It Be Visualized?
  • Einsteinsqd
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1
Graduate Measure of limit of decreasing sequence
  • e12514
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1
Graduate Are Measures m and μ Mutually Singular Given Convergence Conditions?
  • MarketPantry
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1
Graduate Gradient Flow - Definition and Sources
  • muzialis
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1
Graduate Young Functions: Properties & Relations
  • fderingoz
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1
Graduate The most fullproof test for convergence
  • Enjolras1789
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1
Graduate Volterra Equation of first kind existence of solution?
  • Anthony
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1
Graduate Is There a Complex Gradient Formula for Polar Coordinates?
  • gaganaut
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1
Graduate Is This Integral a Candidate for Asymptotic Analysis?
  • thrillhouse86
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1
Graduate Need some information on Cesaro summability and the Grandi series
  • xlzhsteven
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1
Undergrad Preparing for Real Analysis & Modern Algebra: Best (Cheap) Texts
  • daveyp225
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1
Graduate Continuous and Discrete Fourier Transform at the Nyquist frequency
  • CharlesMareau
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1
Graduate Should I Normalize My Discretized Integral?
  • pamparana
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2
Graduate Solving Fun Ellipse Problem: Finding Parametric Representation
  • Seebs
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1
Graduate Derivation of the divergence in the spherical coordinate
  • elgen
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1