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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 A possible solution to the infinite summation of sin(x)
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Undergrad What method to use to calculate volume
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Undergrad Convergent Series: Introduction & Identification
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Graduate Finding the Annulus of Convergence for a Laurent Series
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2
Undergrad How to Demonstrate That These Limits Go to Infinity?
  • joao_pimentel
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Inverse Integral: $\int \frac{x^2\cos^{-1}\left(x\sqrt{x}\right)}{(1-x^3)^2}dx$
  • juantheron
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1
Graduate Formula involving double integral over a disc?
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Graduate Partial fraction decomposition with complex function
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Graduate Laplace Inversion: Why Contour Must Exceed Singularities
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Graduate Can We Prove x1 Equals x2 When the Integral of a Positive Function Equals Zero?
  • Bipolarity
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2
Undergrad Series Expansion for [cos(x)-1]/x^2: Explained and Checked
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2
Undergrad Determining Tangent Slope w/Point Not On Curve
  • Millacol88
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Undergrad Help with a trig to sum identity.
  • Gallani
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1
Graduate Taylor expansion of an integral (for Thermodynamic Perturbations)
  • mSSM
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Graduate Understanding Stokes' Theorem and Gradient Functions
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1
Graduate Contour integration: why is this integral non-zero
  • geoduck
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8
Graduate Sqrt(|xy|) derivatives at (0,0)
  • Curl
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11
Undergrad Integrating Partial Fractions: x^2+2x-1/2x^3+3x^2-2x (x>1/2)
  • oyala
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3
Find Horizontal Asymptote of Rational Function F(x)
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3
Binomial Integral for Non-Negative Integer $n$
  • juantheron
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8
Graduate How to Compute Euler Angles for Rotating Reference Frames
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Undergrad Parametrization question for my Intro. to Higher Math Class
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Undergrad Integrating the differential rate equation
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2
Undergrad A question about differential equations
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2
Graduate Integral of spherical bessel function (first kind), first order
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2
What Is the Indefinite Integral of \( \frac{e^x}{1+x} \)?
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1
Undergrad Is There a Closed Form for the Sum of the Reciprocals of Squares?
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9
Graduate How do I find the volume using cylindrical coordinates for the given region?
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4
Graduate Calculating Integrals with Gauss's Theorem
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2
Undergrad Which version of spherical coordinates is correct?
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5
Undergrad Taylor expansion for f(x,y) about (x0,y0) ?
  • izzy93
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6
Graduate Numerical computation of double integral
  • hunt_mat
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8
Graduate Help getting started with this integral
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2
Graduate Determining an Analytic Function from its Real Part
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3
Graduate Solving a transcendental equation
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1
Undergrad Partial Fractions: Exponent on Denominator Explained
  • xeon123
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10
Graduate Is the Derivative of a Sum always Convergent?
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10
Graduate Solve N Body Problem: Find Chaos
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1
Undergrad Difference Between lim(n->inf.) n and Infinity
  • Acala
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5
Undergrad Struggling to Solve a Limit: \lim_{x\rightarrow -1}(\sqrt[3]{\frac{x^3+1}{x+1}})
  • DDarthVader
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2
Graduate Total Derivatives of fxns from R^n to R^m
  • brydustin
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4
Undergrad Finding Tangent Slope at General Point with Limits
  • Jenninifer
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6
Graduate Difficulty in finding upper limit of x
  • hivesaeed4
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4
Graduate Checking method and answer of Triple Integral
  • hivesaeed4
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5
Why is the Riemann Sum 1 + 6i/n and Not 1 + 3i/n?
  • Houdini1
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2
Undergrad Approximating Areas Under Curves
  • Arcticar
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3
Undergrad Can the existence of a turning point guarantee a solution for h(c)=0?
  • Bipolarity
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14
Undergrad How does this integral come out to be zero?
  • hivesaeed4
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4
Undergrad How Do I Integrate cos(x/y) with Respect to y in a Double Integral?
  • hivesaeed4
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5
Graduate Taylor Series: Can't quite work it out
  • wizard147
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3
Graduate What is the Correct Answer for the Double Integral of exp(y)/y?
  • hivesaeed4
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5
Graduate Finding the Lower Limit of x in Area Integrals: Strategies and Considerations
  • hivesaeed4
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5
Undergrad How to Evaluate Difficult Double Integrals with Limits in the Range of 0 to 1?
  • hivesaeed4
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6
Graduate Direct product between vectorspaces
  • Kontilera
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11
Roots of $f(x)$ Quadratic Equation: $1x^2+2x+3=0$
  • juantheron
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3
What Is the Minimum Value of y in the Given Expression?
  • juantheron
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1
Undergrad What Is the Velocity After 1 Meter?
  • mailhiot
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2
Graduate Can You Inverse a Curl Operator?
  • calvinjhfeng
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1
Graduate Some expressions with Del (nabla) operator in spherical coordinates
  • lol_nl
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1
Graduate How Do You Calculate the Sum Involving Series and Normal CDF?
  • collinback
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1
Undergrad New guy with a question about asymptotes
  • 138.veritas
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4
Graduate How to Expand a Function in a Half-Range Fourier Series
  • hurcw
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8
Undergrad Why Does Integrating x*[x^2(1-x^3)^(n-1)] Result in [(1-x^3)^n] / -3n?
  • izzy93
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1
High School Finding the X-Intercept in a Rational Function: (x^2 +1)/ (x^2 -4)
  • jasn4real
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5
Undergrad Partial Derivatives of Power Functions
  • SwaGGeReR
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6
Undergrad Clarification on the output of partial derivatives
  • Dorslek
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2
Undergrad Where is this function differentiable?
  • Omega017
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1
Graduate Solving or approximating a special class of fourier transforms
  • mattmisk
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3
Undergrad How bad is this statement regarding the Fundamental Theorem for Line Integrals?
  • 1MileCrash
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1
Graduate How to Derive an Integral Formula with an Infinite Upper Limit?
  • ehrenfestcq
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2
Undergrad How do we know the degree of a root which is also a point of inflexion?
  • karan000
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3
Undergrad Paramaterizing a Curve: Understand Motion w/ Exponential Speed
  • fleazo
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1
Undergrad Find Length of Sine Curve using Calculus
  • 1994Bhaskar
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4
How did I finally solve for the summation of n terms?
  • juantheron
  • · Replies 4 ·
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4
Graduate How to show this sum covereges
  • zli034
  • · Replies 6 ·
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6
Graduate How can I convert discrete sums to integrals using spline interpolation?
  • ams2990
  • · Replies 10 ·
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10
Indefinite Integral: $\int \frac{1}{\sqrt{\sin 2x}}dx$
  • juantheron
  • · Replies 1 ·
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1
Graduate A question regarding the order of a pole
  • JmsNxn
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3
Undergrad Setting up the correct limit for an area (double) integral
  • hivesaeed4
  • · Replies 3 ·
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3
Best Way to Graph in Polar Coordinates
  • Amer
  • · Replies 3 ·
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3
Undergrad Different uses of the double integral?
  • hivesaeed4
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2
Undergrad Problems with Lagrange Multipliers
  • jean28
  • · Replies 1 ·
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1
Undergrad Help understanding the First Fundamental Theorem of Calculus
  • fleazo
  • · Replies 7 ·
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7
Undergrad How can I solve a constrained minimum problem?
  • Pepala
  • · Replies 1 ·
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1
Undergrad IS this coincidence? Integral adn summation
  • jd12345
  • · Replies 5 ·
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5
Undergrad Why can you cancel out the dx in u-substitution?
  • nickadams
  • · Replies 31 ·
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31
Undergrad How to find equations of two lines given a conic equation?
  • ashina14
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1
Undergrad How to find local maxima and minimas of undefined functions?
  • jackgartlqn
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2
Undergrad Dy/dx - Fraction and/or Operator
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  • · Replies 12 ·
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12
Graduate Constrained gradient? (optimization theory)
  • brydustin
  • · Replies 4 ·
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4
Graduate Derivative at infinity on the Riemann sphere
  • Unit
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4
Complex analysis - evaluate integral
  • matteoit81
  • · Replies 5 ·
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5
Undergrad Local minimum of z=(x^2+y^2)^(1/2)
  • hivesaeed4
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3
Undergrad What is the Definition of a Limit in Mathematics?
  • MinaHany
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8
Graduate What is the Limit of the Natural Logarithm of Infinity Minus One?
  • autobot.d
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3
Graduate Integrating Hard Integrals: No Closed Form Solution
  • semigroups
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2
Graduate Possible webpage title: Solving for eABC/2 in a Probability Density Function
  • mikedamike
  • · Replies 1 ·
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1
Graduate Numerical integration, use given random distribution as integration points
  • Derivator
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12
Summation of an infinite series
  • polygamma
  • · Replies 3 ·
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3
Graduate Evaluate Gamma Integral: j,k Positive Constants
  • mmzaj
  • · Replies 4 ·
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4