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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 Do You Perform the Taylor Series Expansion of e(a+x)2?
  • Lizwi
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Graduate Solve ∫e^(1/x) / x^3 dx from -1 to 0
  • lasers
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Undergrad What functino has this Taylor Expansion?
  • Swimmingly!
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2
Undergrad Integral of two-variable function
  • Allen3
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6
Graduate Infinitely differentiable functions
  • AxiomOfChoice
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5
Solve Min-Max Problem: Find Optimal Price of Single Call
  • Yankel
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Undergrad Solve ∫(tanxsec^{2}x)dx Integral with Substitutions
  • t6x3
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What is the solution of the difference equation for this equation?
  • juantheron
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4
Graduate Delta Dirac: Showing it's a Distribution
  • sdickey9480
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4
Maximum Volume of a Right Circular Cone with Given Slant Height?
  • checkitagain
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Undergrad If a quantity is small, is the derivative of that quantity small?
  • center o bass
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4
Graduate What Is 4-Dimensional Curl? Get Your Answer Here!
  • purplegreen
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6
Graduate Finding angle of rotation relating two vectors to a third
  • pvm
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2
Undergrad Is the circumference of an ellipse equal to 2πa√1-e^2?
  • tomz
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10
Definite Integral: x(-ln(x)^k)(1-x)^(N-1)
  • bincy
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Graduate Does this derivative have a name?
  • pellman
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Graduate Infinitely differentiable function
  • IniquiTrance
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Undergrad Question about calculus and education
  • Jkohn
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Undergrad How is the tangent and area inverse?
  • member 392791
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3
Graduate Zeta Function Convergence in Interval (0,1): Does It Tend to Zero?
  • Charles49
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High School Indefinite integrals. Arriving at different results.
  • t6x3
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Graduate Complex conjugate of a derivative wrt z
  • stallm
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5
Undergrad Derivative and Integral notation
  • MostlyHarmless
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1
Graduate Explaining Expression 7.3 in Nother's Theorem and Invariance Under Translation
  • hawaiifiver
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High School Converting Trigonometric Ratios to Degree
  • ahmadaming60
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Undergrad Quality of Widder's Advanced Calc. and Edwards's Adv. Calc. of Several Variables
  • moduli1150
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Undergrad Applications of Green's theorem to physics
  • cesaruelas
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Graduate Parameterizing Z-Value in Line Integral for Cylinder (Stokes Thm)
  • The Head
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5
Undergrad Adjusted Cost Formula. Purpose of 0.5 power?
  • fly4food
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2
Undergrad Understanding 1^∞ as an Indeterminate Form
  • Infinitum
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2
Undergrad Minimum distance of a point on a line from the origin?
  • hivesaeed4
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10
Undergrad Trouble with the unit normal vector for stokes theorem
  • hivesaeed4
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1
Graduate F has a primitive on D ⊂ ℂ ⇒ ∫f = 0 along any closed curve in D?
  • Poopsilon
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2
Graduate Proving gradient points in the direction of maximum increase
  • hivesaeed4
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17
Undergrad What Are the Conditions for an Inflection Point?
  • jd12345
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1
Graduate Troubleshooting Line Integrals: Finding Errors in Calculations
  • hivesaeed4
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6
Calculate Definite Integral with N Variable
  • bincy
  • · Replies 9 ·
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9
Graduate Does this method have a name? Function Approximation by Polynomial Sum
  • Swimmingly!
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3
Graduate Solving Complex Integration Involving Bessel, Singularities
  • KayBox
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1
Graduate Significance of parabola in a line integral?
  • hivesaeed4
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6
Undergrad What are the points and vector in this plane?
  • hivesaeed4
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3
Graduate What is the difference between Zeno's paradox and the theory of limits?
  • mark_d
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8
Graduate Find a function f such that f(xy)≠f(yx) at (0,0).
  • hivesaeed4
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Undergrad Setting up a path for a line integral
  • hivesaeed4
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4
Undergrad How to Find the Equation of a Plane Through Three Given Points
  • hivesaeed4
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2
Graduate How is the Complex Line Integral of a Circle Calculated?
  • Skrew
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10
Graduate Divergence of the sum of the reciprocals of the primes
  • Karamata
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4
Graduate Integrating ln(x+1)/(x^2+1) using recursive integration by parts
  • OrangeJuggler
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High School A little confusion over x and y values
  • hivesaeed4
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2
Directional derivative
  • shorty1
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1
Graduate I have some questions about upper limit
  • jwqwerty
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1
Graduate Derivative of transformation of basis in R^n
  • brydustin
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6
Graduate Calculating the residue of the following function
  • Septim
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5
Undergrad Green's, Stokes and Divergence Theorem
  • cristina89
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Graduate How do I carry out an approximation for this equation?(if L Ns then what?)
  • Raziel2701
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Graduate Help in evaluating the chain rule?
  • hivesaeed4
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3
Undergrad Help required for Directional derivatives
  • hivesaeed4
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6
Graduate Can Degenerate Laurent Series Converge in Non-Standard Regions?
  • Josh Swanson
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3
Undergrad Why Do We Use Frustrums Instead of Disks to Find the Surface of Revolution?
  • Bipolarity
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3
How do you derive Taylor Series expansions for quadratic equations?
  • fionamb831
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7
Undergrad Adding Vectors (r, θ, φ) - A Step-by-Step Guide
  • Philosophaie
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2
Solving the Mystery of Crossproduct with Integral and Stokes' Theorem
  • GreenGoblin
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5
Undergrad Is y' a Function of y in the Equation y' = ax - by?
  • wumple
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1
Undergrad Maxima minima of function of several variables
  • Neitrino
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1
Graduate Solving Integral: \int_0^{2\pi}\frac{x^n}{\sqrt{1-m\cos x}}dx
  • csopi
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3
Graduate Derivative of a function with variable also in the integrand
  • GridironCPJ
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5
High School What is the integration shortcut taught in China?
  • bbryant33
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4
Graduate Shortcut to taylor series of f, given taylor series of g
  • 54stickers
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2
Undergrad Is my proof of this sequence's divergence good enough?
  • mathnoobie
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1
Undergrad Noob Integral Question, Indeterminate form of ?
  • ken.
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3
Graduate Inverse Jacobian: Proving the Identity & Its Name
  • Hassan2
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4
Undergrad What do the symbols in the line integral equation mean?
  • nayfie
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5
Undergrad An odd trig identity, I WANT PROOF
  • andrewdavis23
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3
Undergrad Can the Alternating Series Test Prove Divergence?
  • Bipolarity
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5
Undergrad Arc length and definite integral
  • sithe
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6
Graduate Question about relation between powers and distance
  • arthurav
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1
Graduate Simple partial differential equation
  • dexter90
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2
Graduate How is the Correction Term in Steepest Descent Approximation Determined?
  • Mesmerized
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2
Graduate Double integral on one function of x and another of y
  • carlosbgois
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2
Graduate Holomorphic function on the unit disc
  • iamqsqsqs
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7
Convergence of an Infinite series and a related Qn
  • bincy
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5
Graduate Integrating the generator lines of an elliptical orbit
  • Appleton
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3
Graduate Integral of xcos(xy) over a rectangle
  • carlosbgois
  • · Replies 2 ·
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2
What is the lower bound for the product term with a limit of M>=2?
  • bincy
  • · Replies 5 ·
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5
Graduate Prime Number Theorem and Its Expansion: A Puzzling Equation
  • autobot.d
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1
Undergrad Complex Fourier Series: n from -∞ to +∞?
  • Tosh5457
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3
Undergrad Calculate number of turns in Archimedes spiral
  • evilbrent
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2
Undergrad Value of second derivative at a given point?
  • ashina14
  • · Replies 2 ·
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2
Graduate Log(z) : singularity, series and pole
  • Ritz_physics
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1
Calculating the Value of $f(m,n)$
  • juantheron
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4
Undergrad Area and Volume integral using polar coordinates
  • izzy93
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2
Graduate Limit proof on Sequence Convergence
  • Bipolarity
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1
Undergrad Finding if a point belongs to a line in space.
  • smithnya
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3
Graduate A difficult integral with exp and erf squared
  • petru
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2
Graduate Integral of an exponential that has a polynomial
  • aafrophone
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4
Graduate Manipulation of an analytic function
  • thayin
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3
Taylor and Geometric Series questions
  • rmon
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4
Graduate Where are the singularities of f(z) = Log(2+tan(z)) located?
  • Gallani
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1
Graduate How to maximize when two variables depend on each others
  • Kolmin
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6
Undergrad Integrating Areas between curves
  • Isaiasmoioso
  • · Replies 4 ·
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4