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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 can i calculate length of a rod with Monte Carlo method?
  • cloudhunter
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Graduate Q on Second partial derivative test for functions of n variables
  • D_Tr
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2
Graduate Understanding Spivak's Proof of Unique Derivative: A Holiday Challenge
  • mathlove1
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2
Graduate Procrustes Analysis and Lagrange Multipliers
  • AntsyPants
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4
Graduate Conservative Vector Field: Understanding Circulation and Potential Function
  • Damidami
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3
Undergrad Can I use polar coordinates in a triple integral?
  • queenstudy
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14
Graduate D/dx[int(0,x) e^(-t^2) dt] : two methods, two answers
  • nomadreid
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4
Undergrad Does the Limit of aCn/na Approach 1/a! as n Approaches Infinity?
  • nhmllr
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3
Graduate Alternative proof of a theorem in Rudin
  • identity1
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12
Undergrad How to write a function by analysing/looking at a waveform?
  • pairofstrings
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6
Undergrad Does a symbol exist for this operation?
  • brydustin
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2
Graduate Convergence of several improper integrals
  • jiazhen
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1
Graduate Second derivative positive implikes midpoint convex
  • resolvent1
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2
Undergrad Testing inequalities on intervals
  • ucbugrad
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1
Graduate A working example wrt the supremum norm
  • bugatti79
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7
Graduate Proving lim(n→∞)1/an=0 if lim(n→∞)an=0 is False
  • gregy6196
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12
Graduate Proof of Taylor Series for Sinus: Step by Step Guide
  • georg gill
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7
Graduate How to integrate a fraction of sums of exponentials?
  • DRJP
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Graduate Integration with fraction in exponential
  • Elsasw
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2
Graduate What is the name of this theorem? (complex analysis)
  • gluons
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2
Undergrad What does a delta symbol mean in mathematics?
  • IntegrateMe
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2
Graduate Parametric Sphere Projection: A Function for Projecting Points onto a Sphere
  • Lancelot59
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2
High School Slope: Average vs. Instantaneous Change
  • otomanb
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6
Undergrad Second Derivative Test for Partial Derivatives
  • SeannyBoi71
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1
Graduate Challenge to the community, Squaring of polynomials conjecture
  • checkitagain
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9
Graduate What is the difference between l subscript infinity and l superscript infinity?
  • bugatti79
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1
Graduate Period of a ball rolling on a cycloid
  • guillefix
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5
Graduate Functions with curvature as parameter
  • MrMormon
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3
Graduate Fourier Trasform of Delta functions
  • muzialis
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1
Graduate Finding the Coefficients in the Laurent Series of a Logarithm
  • namu
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3
High School Easy Steps for Extremas & Mean Value Theorem Problems in Calculus
  • iRaid
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1
Graduate Sum of squares of differences of functions
  • brydustin
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3
Graduate Sum Over a Field: Algebra, Group, Ring
  • joebohr
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7
Undergrad Can Wolfram Alpha Solve My Integral Problem for ln(x)/(1+x)^2?
  • rasi
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1
Graduate Use of Dirac delta to define an inverse
  • lukluk
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1
Graduate [complex analysis] differentiation w.r.t. complex conjugate; does it make sense?
  • nonequilibrium
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8
Undergrad Divergence and convergence question
  • Teachme
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5
Graduate How Long Can the Stick Be to Fit Horizontally Through the Chamber?
  • georg gill
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6
Undergrad Converting cartesian surface integral to polar
  • jbar18
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4
Undergrad Could you check if these two are equivalent?
  • Chsoviz0716
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2
Graduate Proof involving divergence and gradients
  • Rusty87
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1
High School Limit of an integral is from a to a does it always equal to zero?
  • vkash
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5
Undergrad Solving Limit Problem with N Approaching Infinity
  • Mutlu
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4
Graduate Integration of exponential of inverse tangent
  • Elsasw
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4
Graduate Can Simpson's Rule Error Proof Assume Continuity on Varied Interval Bounds?
  • georg gill
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2
High School Challenge problem to the community - - - domain and range
  • checkitagain
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6
Undergrad Basic problem with supremum question.
  • tamintl
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3
Undergrad Any Errors in My Proof for Derivative of Cosine?
  • georg gill
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5
Undergrad Favorite Integral: Gaussian or ∫(sin x)/x?
  • FrancisD
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6
Undergrad Proof of an elementary but very important result
  • dextercioby
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6
Undergrad How Do You Derive Taylor Polynomials for Different Functions?
  • georg gill
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1
Undergrad What pre-calculus needed for this calculus class?
  • tdod
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1
High School How Can Joe Optimize the Spacing of His Christmas Tree Lights?
  • clanijos
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5
Undergrad Euler's Formula and Complex Logarithms relationship
  • physicsdreams
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1
Graduate How to integrate the delta function of complex variable?
  • blenx
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5
Undergrad A Why Question:Taylor Polynomial of e^x over x?
  • RadiantL
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8
Graduate What Is the Half Derivative of (ax+c)^(3/2)?
  • Jocher
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4
Graduate Is the Set of Integers Closed in the Euclidean Plane?
  • Paparazzi
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11
Graduate Proving Cauchy Sequences using the Definition
  • dpw
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7
Undergrad Is infinity minus infinity equal to a finite number?
  • Zula110100100
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5
Undergrad Using epsilon-delta relation prove that
  • bezgin
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7
Undergrad Algebra in Calculus: Understanding Integration & Differentials
  • elementbrdr
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9
Graduate How to analytically prove a sum goes to zero
  • kahwawashay1
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4
Undergrad Functions and their Extrema: Understanding Absolute Maxima and Minima
  • nDever
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14
Graduate Partial sums for convergent series
  • kahwawashay1
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1
Graduate Looking for a calc book with nothing but problems
  • bpatrick
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7
Undergrad What is the Gravity GPM for a 1 pipe and 83 gal. fuel transfer tank?
  • docsmith
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2
Graduate Is the Kronecker Delta Equivalent to the Dirac Delta as h Tends to 0?
  • Klaus_Hoffmann
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3
Undergrad Factoring Limits: Solving Quadratic Equations
  • PowerBuilder
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1
Graduate What can we learn about the constants in the limit of k_3 for the E equation?
  • Apteronotus
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1
Undergrad Method for solving complex equations f(z)=0
  • liviuct
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1
Graduate Fourier Series at Discontinuities
  • Hermes10
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1
Undergrad How Can the Alternating Series Test Assume N=1?
  • georg gill
  • · Replies 1 ·
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1
Graduate How Are Multiple Stieltjes Integrals Defined on Multidimensional Sets?
  • Damidami
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1
Graduate How to Prove the Lagrange Inversion Theorem?
  • AdrianZ
  • · Replies 1 ·
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1
Graduate Non Stieltjes integrable function
  • Damidami
  • · Replies 1 ·
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1
Undergrad Get y from x on the cardinal spline curve
  • mishalkk
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5
Undergrad Solve Horse Race Problem: Distance from A to B & Position at C
  • bathtubbuddy
  • · Replies 1 ·
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1
Undergrad How Can I Expand My Essay on Fractals?
  • blahblah8724
  • · Replies 6 ·
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6
Graduate Integral representation of Euler - Mascheroni Constant
  • Yuqing
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3
Graduate Uniform Convergence of fn(x) for x in (1, infinity)
  • hamsterman
  • · Replies 9 ·
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9
Undergrad How Much of Your Vision Does a Cube Face Occupy?
  • PercivalAsks
  • · Replies 6 ·
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6
Undergrad Fourier Transforms: Exp(-iwt) or Exp(iwt)?
  • zheng89120
  • · Replies 2 ·
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2
Undergrad Calculate second order derivative
  • chapsticks
  • · Replies 3 ·
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3
Graduate Two-variable functions defined on a one-dimensional subset
  • mnb96
  • · Replies 3 ·
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3
Undergrad Find two perpendicular vectors which are perpendicular to another
  • yanyin
  • · Replies 14 ·
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14
Graduate Proving Cayley Transform operator is unitary
  • Ad123q
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2
High School How to calculate arc length in unit circle
  • subuntu
  • · Replies 3 ·
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3
High School Simple Integral but unknown method
  • EternityMech
  • · Replies 1 ·
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1
Undergrad Differential equation for time and speed
  • georg gill
  • · Replies 1 ·
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1
High School Integral with Polar Coordinates: Teta Angle Interval
  • queenstudy
  • · Replies 7 ·
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7
Undergrad Simple derivative. Where is the logical fallacy here?
  • PinkCrayon
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3
Graduate Is Curl F Non-Zero in a Conservative Field?
  • athrun200
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1
Undergrad Why cant i use substitution for this?
  • schapman22
  • · Replies 2 ·
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2
Undergrad [(f(x+h) - f(x))/h] versus [(f(x) - f(0))/x]
  • LearninDaMath
  • · Replies 5 ·
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5
Graduate Explain why this is no good as a definition of continuity
  • gregy6196
  • · Replies 1 ·
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1
Undergrad Can you explain the usefulness of Laplace Transformation in signal analysis?
  • ritzmax72
  • · Replies 3 ·
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3
Undergrad Why is a function decreasing the fastest in dir of neg of the gradient?
  • toofle
  • · Replies 2 ·
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2
Graduate Area of a circle's perpendicular components
  • Zula110100100
  • · Replies 1 ·
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1
Undergrad How do i differentiate something like 12/(x^+3)?2
  • mutineer
  • · Replies 3 ·
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3