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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 How to visualize a line integral
  • Isaiah Gray
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Graduate Fourier Transform of Bessel Function of the 1st Kind
  • Airsteve0
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2
Undergrad Can Summing Infinite Series to -1 Be Valid?
  • EternityMech
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7
Undergrad Does the Taylor series expansion for e^x converge quickly?
  • sandy.bridge
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3
Graduate Compactness and every infinite subset has a limit point
  • faradayslaw
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8
Graduate Prove of the complicated integral
  • shayaan_musta
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2
Graduate How Do Polar Coordinates Reveal the Shape of Curves in Spivak's Calculus?
  • urdsirdusrnam
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Graduate Solving Integrals by Series Expansions
  • yfatehi
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10
Undergrad When can one Change order of derivatives?
  • Charanjit
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2
Graduate Strange proof of Young's inequality
  • AxiomOfChoice
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1
Graduate Inverse Fourier Transformation of a Fourier Transformation
  • SwordSmith
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3
Graduate Chain rule violated for arc length?
  • ajain
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3
Undergrad Posts: 1 How to write the Fourier series up to Nth harmonic?
  • red009
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4
Graduate What is the definition of analytic at infinity in complex analysis?
  • gauss mouse
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4
Undergrad Ln x/y = ln x - ln y From Integral 1/x dx only ?
  • Point Conception
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7
Graduate Integration with respect to the counting measure
  • AxiomOfChoice
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3
Graduate Differentiable on interval implies monotonic on some neighborhood of every point
  • Poopsilon
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8
Graduate Laplace Equation in Cartesian Coor.
  • Apteronotus
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4
Undergrad Can you take a derivative with respect to the dependent variable?
  • Stalker_VT
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26
Graduate Existence of meromorphic functions
  • lavinia
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3
Undergrad How Do First Derivatives Help Identify Critical Points and Local Extrema?
  • PowerBuilder
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2
Graduate Chain Rule and Multivariable Calculus Question
  • Stalker_VT
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1
Undergrad Quotient rule for higher order derivatives
  • mmzaj
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17
Undergrad Substitution in Laplace Transform: Simplifying the Process of Finding Transforms
  • azserendipity
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1
Graduate Z-transform of a discrete convolution
  • samuelandjw
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4
Graduate Substitution changes limits of integration?
  • TUMath
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4
Graduate What is the definition of compact sets in real analysis?
  • felani
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2
Undergrad Solve Rate of Convergence Problems Easily
  • Zaphodx57x
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3
Graduate Do physicists know the Lebesgue integral?
  • imurme8
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5
Graduate Rigorously Proving Direct Proportionality: Let's Find Out!
  • MIB
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5
Graduate How does the del operator change with incompressibility assumption?
  • Hypatio
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4
Graduate [Help]The proof of (a.c)b-(a.b)c=aX(bXc)?
  • Ask4material
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Graduate Integration of function in a region
  • phonic
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2
Graduate Approximating (x^2+a^2)^(1/4) w/ Error < 1e-6
  • dirk_mec1
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1
Graduate Fraction of integrals with different variables
  • huey910
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5
Undergrad Question about simple analysis proof
  • f24u7
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3
Graduate Does a Function f(x,y,z) Satisfy Given Partial Derivatives?
  • kokai
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Graduate Prelim problem: bizarre integral expression
  • laonious
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3
Undergrad Can TI-83 Calculate Exponentials in Cartesian Form?
  • 14prc
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6
Undergrad Taylor Series/Newton Raphson Method question -Link Fixed
  • Shadow_7
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1
Undergrad What is the integral of ln(9-x) over ln(9-x) plus ln(x+3)?
  • rasi
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3
Graduate Orientation of Surface and edge of surface
  • Castilla
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7
Undergrad Taylor Series/Newton Raphson Method question
  • Shadow_7
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2
Undergrad Are implicit and partial differentiations related?
  • nomadreid
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2
Undergrad Finding the derivative vs differentiating vs finding the differential of a fn/eqtn
  • torquemada
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3
Graduate Is the Kronecker Delta Related to the Dirac Delta in Quantum Mechanics?
  • coki2000
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3
Undergrad Why does Δx tend to 0 when Δu tends to 0 in the chain rule?
  • cupu
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6
Graduate Proof that Every Compact Set is Bounded
  • gwsinger
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10
Graduate Complex Analysis proof question (from Markushevich text))
  • imurme8
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1
Undergrad Definite Integration: Solve (5∏/2) ∫y8 dy = 0.873
  • Rob K
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6
Graduate Relationship Between K-Cells and Intervals in Baby Rudin
  • gwsinger
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7
Undergrad What shape results from integrating the area of a circle?
  • Rob K
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5
Undergrad Integrals over different domains
  • bugatti79
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1
Graduate Hi,I'm trying to prove that [tex]\lim_{x\to 0}\Gamma(x) =
  • Froskoy
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4
Graduate Can You Solve This Bessel Function Equation Analytically?
  • vvthuy
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9
Graduate How can I use slope calculations to solve for sin(x)?
  • sbcdave
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3
Undergrad How Can You Effectively Visualize and Draw Vector Fields?
  • sandy.bridge
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1
Graduate Derivative of a complex function in terms of real and imaginary parts.
  • gauss mouse
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7
Graduate Does the dirac delta function have a Laplace transform?
  • AdrianZ
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1
Undergrad How can I find the derivative of an integration with respect to y?
  • phonic
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1
Undergrad Finding points of non-differentiability
  • Ashu2912
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2
Graduate Analytic continuation of the zeta function
  • galoisjr
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2
Graduate Defining of function in equation
  • matematikuvol
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2
Graduate Unclear step in diam(S) = supS − inf S proof
  • newToMetricSp
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1
Graduate The additive function is bounded
  • LikeMath
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1
Undergrad Graphing f(x) = e^x/x and Testing for Infinity
  • tomwilliam
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2
Graduate Changing Variables in PDEs: Understanding the Chain Rule
  • AxiomOfChoice
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1
Graduate Equality of mixed partial derivatives of order >2
  • NickMusicMan
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1
Undergrad Find the general expression from k=0 to 'n'
  • joao_pimentel
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10
Graduate Derive \dot v: A Thermo Relation for V, m and v
  • An1MuS
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1
Undergrad Interchanging summation with integral, differentiation with integral
  • SadScholar
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6
Undergrad Double Integral volumes: Triangular base
  • dan5
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5
Graduate Implicit partial differentiation functional det[]
  • 54stickers
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3
Undergrad Analytic proof of continuity, differentiability of trig. functions
  • student10567
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2
Graduate Equality of integrals => equality of integrands
  • Derivator
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4
Graduate Physical definition of a complex angle
  • Thomas2054
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12
Undergrad Triple integral and cartesian coordinates
  • queenstudy
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9
Undergrad Efficiently Solve ∫x/(1+ex) dx with Expert Guidance | Get Back on Track Now!
  • all-black
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7
High School Solving an Nth Derivative Problem with f(x)= (3x+7)/(x+2)
  • AkshayKG1000
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4
Undergrad Math problems to tell where you are with your knowledge of math
  • 2slowtogofast
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9
Graduate Can you prove that Re{n} > -1/2 without using a prefix?
  • Li(n)
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4
Graduate Continuous and smooth on a compact set implies differentiability at a point
  • resolvent1
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2
Where Can I Find Help on Writing Series Expansion Formulas?
  • kahlan
  • · Replies 11 ·
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11
Graduate What Constitutes an Euclidean Space in Multivariable Calculus?
  • Damidami
  • · Replies 23 ·
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23
Graduate Defining Open Subsets in Baby Rudin
  • gwsinger
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4
Graduate Could There Be a Matrix Analog of the Del Operator?
  • Dindane
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1
Graduate Finding and recognizing infeasible Lagrange multiplier points
  • clustro
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5
Graduate Spivak Inverse Function Theorem Proof
  • krcmd1
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3
Undergrad What Are the Derivatives of |x| and [x]?
  • jobsism
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6
High School Location of proofs of trigonometric identities
  • michaelknight
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2
Undergrad Help understanding MIT Open Course Ware Video Content
  • calcstudent1
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12
Undergrad Quick question about integral of (1/x)
  • 2^Oscar
  • · Replies 24 ·
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24
Graduate Can two different infinite series converge to the same limit?
  • raphile
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3
Undergrad Confused about Limits in Algebra? Let's Clear Up Some Doubts!
  • Ashu2912
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8
Undergrad Derivative of Finite Sums: Solve Your Problem Here
  • Milentije
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2
Graduate Finite Intersection of Open Sets Are Always Open?
  • gwsinger
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8
Undergrad Question regarding Fourier Transform/e^-2pi*i
  • pawnwarp
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3
Undergrad AP Calculus AB: Solving Limits Question on Continuity
  • Chirag B
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1
Graduate How Does Non-Radial Symmetry Affect the Fourier Transform of 1/|r|?
  • Morberticus
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4
Graduate Confirming divergence theorm example
  • namu
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2