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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
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2
Graduate FFT phase result interpretation?
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How can I use integration by parts to solve $\displaystyle \int\sin^2(x) \ dx$?
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Effie's question via email about a volume by revolution
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Undergrad Question on Calculus of variations formalism
  • guitarphysics
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High School What would the "correct" way of doing this integral be?
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Solving a Complex Math Problem: Help Appreciated
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Undergrad Use Rolle's theorem to show repeated root has zero gradient
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20
How do I find the integral of x^3/(x^2+4)?
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8
Undergrad Proof: If a Polynomial & its Derivative have Same Root
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3
Undergrad Approximation to sqrt(1+(d^2)/(x^2))
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Undergrad Divergence theorem and closed surfaces
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Undergrad Is this even possible? Question about Fourier Series....
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Solving Limits and Riemann Sums: Tips from Nemo
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Graduate Does My Understanding of Tensor Calculus and Divergence Look Correct?
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How Does Changing the Sign of a Constraint Affect Lagrangian Solutions?
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How to Evaluate the Integral of the Square Root of 9+4x^2?
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12
High School Making a definite integral equal and indefinite integral?
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Undergrad Need help with this definite integral
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High School Simple question about differentiation of trigonometric function
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High School Approximating Pi using Newton-Raphson
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Find the stable equilibrium points
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What is the integral of $\sqrt{x^2-1}$? What is the integral of $\sqrt{x^2-1}$?
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11
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What values of m maximize the utility function for a consumer buying two goods?
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Undergrad Vector Laplacian: Scalar or Vector?
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8
Undergrad Understanding the summation of diverging series
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Graduate Solving polynomial coefficients to minimize square error
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8
Volume of Region Between y=x and y=-x²+2x
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4
How Do Constraints Affect Finding Stationary Points and Global Extrema?
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17
Undergrad Vector Triple Product Identity and Jacobi Identity for Deriving 4B.10 and 4B.11
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2
-z.61.W8.6 int sin^2(x)cos^2(x) dx
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Undergrad "Hence the partial derivatives ru and rv at P are tangential
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2
Slope of Line Intersecting (2,2) & (6,7)
  • suluclac
  • · Replies 1 ·
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1
Analyzing Stationary Points of Multivariable Function
  • Pulty
  • · Replies 4 ·
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4
Jake's questions about integrations
  • Prove It
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1
How much work is required to lift a weight to orbit?
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  • · Replies 2 ·
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2
Is My Root Test Solution Correct?
  • Zoey93
  • · Replies 2 ·
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2
Where Does the $\frac{1}{2}$ in Step 3 Come From?
  • karush
  • · Replies 9 ·
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9
Evaluating Integral with Change of Variables
  • karush
  • · Replies 5 ·
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5
What is the derivative of the trigonometric integral?
  • karush
  • · Replies 9 ·
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9
Undergrad Why Does the Gradient Point Towards the Greatest Increase?
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  • · Replies 3 ·
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3
Proving Divergence of \sum\frac{1}{2n+1}
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  • · Replies 2 ·
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2
-write expression in expanded form...find the sum
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  • · Replies 2 ·
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2
Undergrad Understanding uniform continuity....
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2
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Integral involving the derivative
  • Yankel
  • · Replies 5 ·
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What Is the Correct Volume of the Region Revolving Around x=1?
  • karush
  • · Replies 3 ·
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3
Two Similar Limits with Different Results
  • Velo
  • · Replies 4 ·
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4
Calculating Limits without Cheating or L'Hopital's Rule
  • Yankel
  • · Replies 5 ·
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5
Undergrad What are the possible y-values for a given x in the overlap of two functions?
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16
Undergrad Is every conservative vector field incompressible?
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9
Undergrad What Test to Show that Inverse Curl Exists?
  • greswd
  • · Replies 6 ·
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6
How Do You Calculate Volume by Rotating a Region Bounded by Curves?
  • karush
  • · Replies 9 ·
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9
Am I changing the coordinates well?
  • Granger
  • · Replies 8 ·
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8
Undergrad Why does [f(b)-f(a)]/(b-a) make sense?
  • egio
  • · Replies 4 ·
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4
High School A relation which intercepts with....
  • Saracen Rue
  • · Replies 4 ·
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4
Undergrad Slope w.r.t Origin: Difference, Usage & Examples
  • Mayank Totloor
  • · Replies 6 ·
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6
Changing variables for defining a region
  • Granger
  • · Replies 2 ·
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2
Integrand with Lambert W -function
  • Theia
  • · Replies 3 ·
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3
How Do You Calculate the Normal Vector of a Sphere in Spherical Coordinates?
  • brunette15
  • · Replies 3 ·
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Is the Limit of x/x! as x Approaches 0 Equal to 0 or Does it Not Exist?
  • Prove It
  • · Replies 7 ·
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7
Undergrad Chain rule in a multi-variable function
  • Ananthan9470
  • · Replies 1 ·
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1
Undergrad Integral of third order polynomial exponential
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From the marginal cost to the total cost.
  • Francobati
  • · Replies 1 ·
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1
Undergrad Proving limit theorems when limit tends to infinity
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  • · Replies 7 ·
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Polar coordinates to evaluate double integral
  • brunette15
  • · Replies 1 ·
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1
Undergrad Lebesgue measure and Fourier theory
  • Jianphys17
  • · Replies 1 ·
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1
Undergrad Lagrange Multiplier where constraint is a rectangle
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Undergrad Is my integral integrable using Mathematica or is there a fundamental error?
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  • · Replies 43 ·
2
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Solving the Integral: $\int_{0}^{1}\dfrac{x^4(1-x)^4}{1+x^2}dx$
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  • · Replies 3 ·
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Differentiation with fractions, radicands, and the power chain rule
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Undergrad Is there a trick to tell which is the higher curve?
  • Alexandra Fabiello
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Undergrad Calculating Flux through shape on irregular plane in 3-Space
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What is the calculation for the height of a high jump on the moon?
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  • · Replies 6 ·
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6
Undergrad Ln x as a logarithmic function
  • ruivocanadense
  • · Replies 17 ·
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17
Undergrad Uniform current in cylinder and straight wire: same field?
  • DavideGenoa
  • · Replies 6 ·
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Undergrad General solution to linear homogeneous 2nd order ODEs
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How to Find the Maximum of the Function f(x)=12x-32+24√(9-3x), for x≤3?
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A Function's Intervals of Increasing/Decreasing, Extrema and Concavity
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  • · Replies 25 ·
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Undergrad Finding the volume under the curve of a rotated function
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  • · Replies 8 ·
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Maximisation Question: Find Largest Capacity
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Undergrad What are the interpretations of Convolution integral?
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Graduate Mathematics of The Multi Dimensional Universe
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7
Undergrad Question regarding the derivative terminalogy and wording
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Surface area of sphere increase at a constant rate
  • Nemo1
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11
Undergrad How Do You Solve for At Using Subscript Derivative Notation?
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Undergrad Square Root in an alternating power series
  • Satirical T-rex
  • · Replies 6 ·
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6
S4.6r.11 Solid of revolution about the y axis
  • karush
  • · Replies 10 ·
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10
Find Vol Bound by $x_2 =\frac{y+1}{2}$ & $x_1=y^2$
  • karush
  • · Replies 2 ·
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2