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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
Undergrad Surface w/ max volume and min surface area
  • ksle82
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Graduate The annoying old 0.999 vs 1, hopefully with a twist
  • miscellanea
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9
Graduate Is my proof for the boundedness of the set of accumulation points correct?
  • MathematicalPhysicist
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Graduate What function satisfies this Fourier series integral?
  • gonzo
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Undergrad Double Integrals - Volume vs. Area
  • Gramma2005
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Graduate Is the operator $(\vec A \cdot \nabla)$ well-defined in curvilinear coordinates?
  • StatusX
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Undergrad What is the difference between double and surface integrals?
  • Manaf
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Graduate Showing Alternative Methods for Solving Problems
  • Shevchenko
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Graduate Iterated trigonometric differentiation
  • Orion1
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Graduate Can All Functions Be Explicitly Inverted?
  • eljose
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Graduate Why can,t we multiply two distributions?
  • eljose
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Undergrad What is the integral of e and how does it relate to acceleration and velocity?
  • Dae
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Undergrad How to Solve the Integral of e^x ln(x) dx?
  • ultrazyn
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Undergrad Can Integrals Ever Blow Up and What Does That Mean?
  • eep
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Undergrad What is the practical use of calculus in various fields?
  • Butterfingers
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Graduate Is the conjugate of an integral the integral of the conjugate in L2 space?
  • gonzo
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Graduate How to Solve Vector Calculus Equations Using Lagrange's Formula?
  • boarie
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Graduate How Can One Prove a Function Lacks an Elementary Antiderivative?
  • TD
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Undergrad Max Value of f(x): 3cos(4πx-1.3) + 5cos(2πx+0.5)
  • AlbertEinstein
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Graduate Can You Prove the Unseen? A Challenge in Complex Analysis
  • desmal
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Graduate Limit of Integral: x $\rightarrow$ 0, $\int{\sin{t^2}}dt$ 0 to 3
  • ultrazyn
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Graduate Proving Infinite Sum of n^2 a^n/n! = a(1+a)e^a
  • Repetit
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Graduate If h is L-integrable and f + g = h, then f and g also are
  • Castilla
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Graduate Evaluating multi-dimensional integrals
  • loom91
  • · Replies 13 ·
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13
Undergrad Understanding the Derivative of a Dot Product: A Question on the Product Rule
  • Gott_ist_tot
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Undergrad Probability problem - Test Cheaters
  • carolyn2112
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Graduate Analysis Problem: Find Solution in 1 Week
  • Dragonfall
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7
Graduate Can the Integration of x^x be Solved Conventionally?
  • Quadratic
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Graduate Size of the division of a segment in infinite intervals
  • Iraides Belandria
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19
Graduate How can we translate a lemma from Riemann integration to Lebesgue integration?
  • Castilla
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Graduate Can Two Distinct Functions Share Magnitude and Fourier Magnitude?
  • StatusX
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Undergrad The limit of sqrt(x) as x goes to 0
  • vsage
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8
Graduate Equal Integration on Real and Rotated Axes: Why the Difference at +pi/4?
  • naima
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Undergrad Defining and Evaluating the Limit of e: A Closer Look
  • cscott
  • · Replies 10 ·
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Undergrad Calculus and pattern recognition
  • fsm
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Undergrad What are the Applications of Complex Analysis in Calculus?
  • grief
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6
Undergrad How Do You Find the Double Derivative of This Function?
  • ozzie6616
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Graduate How to Calculate the Index of a Line in a Complex Integral?
  • Erikve
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Graduate Real roots of Fourier transform
  • eljose
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Graduate Any non-elementary gamma fcn formulas?
  • benorin
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3
Graduate What Is the Normal Vector in Stoke's and Gauss' Theorems?
  • pivoxa15
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Undergrad Chasing Person B: Describing the Curve Mathematically
  • hypermonkey2
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6
Undergrad How Do I Tackle Basic Integration in Economics After a Long Break?
  • vaxop
  • · Replies 7 ·
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High School Infinity x Zero: James' Math Problem
  • James Has Questions
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Undergrad Help With Expansion of f(x) Function!
  • NEWO
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8
Graduate Can the Dirac Distribution be Proven Using Integrals?
  • naima
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Undergrad What Does the Big F Represent in Equations?
  • Line
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10
Undergrad How Do You Determine Which Values to Use in Linear Approximation?
  • Rizzice
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Graduate Why Are Open Sets Preferred in Defining Domains in Topology?
  • pivoxa15
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Undergrad Show Region of Integration for Multiple Integrals
  • Brewer
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4
Graduate How Do You Verify a Linear Fractional Transformation in Complex Analysis?
  • sweetvirgogirl
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Undergrad Calculating Mass of Oil in Cylindrical Core
  • Miro
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Undergrad That is the integral that I would use to find the volume of the solid.
  • Pixter
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Graduate Integral Problem: Solve Complex Integral on Exam
  • Zurtex
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Undergrad Understanding Euler's Formula: The Geometric Connection to e
  • Markjdb
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6
Undergrad How do I find the center of mass using polar coordinates?
  • vadar
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Undergrad How Do I Calculate Arc Length for f(x)=x^3?
  • basha
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3
High School How Should You Approach Solving Basic Trigonometric Limits?
  • Taryn
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11
Graduate How is the Formula for Torsion Derived?
  • thechunk
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Graduate Sum of Series with Trigonometric Terms: Seeking Method to Find Exact Value
  • rahl__
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Undergrad How Do You Solve Integration Problems Using Partial Fractions?
  • dark_omen
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Graduate Is the Set {z^2: z = x+iy, x>0, y>0} Open or Closed?
  • sweetvirgogirl
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8
Undergrad Deriving Magnetic Field from Biot-Savart Integral for Long Straight Conductor
  • Pixter
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6
Graduate From decreasing sequences to decreasing functions
  • Castilla
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8
Undergrad Sphere in a cone (ball in a wine glass)
  • rcgldr
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2
Graduate Calculus of variations basic question
  • alsey42147
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Graduate Applying SC. Lemma: Conditions & Practical Uses
  • sweetvirgogirl
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4
Graduate What are the applications of the Riemann Mapping Theorem?
  • sweetvirgogirl
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Undergrad What is a good intro to complex variables book for an undergrad?
  • axeae
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19
High School Collegeboard and the AP Calculus exam is done
  • Ebolamonk3y
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Graduate A lemma about upper derivatives (upper, non right)
  • Castilla
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Graduate Epsilon and delta definition of limit
  • kidia
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4
High School What is the first derivative of sec^2x?
  • bill nye scienceguy!
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Graduate Does this Integral have an Elementary Solution
  • omagdon7
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2
Graduate How Much Analysis is Needed to Study Elliptic Curves in Digital Signatures?
  • Castilla
  • · Replies 11 ·
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11
High School Finding Resources for Calculus: Examples & Explanations
  • Quadruple Bypass
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3
Undergrad Interesting problem about latitude
  • ArcainineFalls531
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4
Graduate Generalized change of variables?
  • 0rthodontist
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4
Graduate What is Euler's Series Transformation and its applications?
  • benorin
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2
Graduate Linear Functional Operations in Vector Spaces and Fields
  • daveb
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2
Graduate Asymptotic Equality: Can I Conclude a-c~b-d?
  • Treadstone 71
  • · Replies 1 ·
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Graduate Complex analysis - area inside a simple closed curve
  • sweetvirgogirl
  • · Replies 1 ·
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Graduate Complex analysis - argument principle
  • sweetvirgogirl
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Graduate Complex analysis - maximum/modulus principle
  • sweetvirgogirl
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Graduate Complex analysis - conformal maps -mapping
  • sweetvirgogirl
  • · Replies 7 ·
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Graduate Division of Characteristic Functions
  • BSMSMSTMSPHD
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Undergrad Discrete Derivatives: Types & Uses
  • yetar
  • · Replies 7 ·
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7
Graduate Most general multiplicative sequence is ?
  • benorin
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Undergrad How can we find the volume of an ellipsoid using an integral?
  • -=nobody=-
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5
Graduate Understanding the Union of Countable Sets in Real Functions
  • Castilla
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13
Graduate Uniformly continuous and bounded
  • math2006
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1
Undergrad How can I prove the continuity of sin(x) using common properties?
  • JonF
  • · Replies 4 ·
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4
Undergrad Upper and lower derivatives information
  • Castilla
  • · Replies 11 ·
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11
Graduate Partial Derivative of a Parametric Equation
  • emob2p
  • · Replies 1 ·
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Graduate Understanding Theorems: Open Mapping & Closed Range
  • Miss_lolitta
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4
Undergrad Are we considering point a line segment?
  • mubashirmansoor
  • · Replies 16 ·
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16
Graduate Can Calculus be Formulated with Infinitesimals Without Introducing New Numbers?
  • dx
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Graduate Heine-Borel Theorem: Bounded & Closed Set Covered by Finite Open Subsets
  • pivoxa15
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Graduate Superellipse and a good coordinate system
  • traianus
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Undergrad Integrals of surface area/volume
  • mooshasta
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