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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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Derivative using the limit definition (without using L'Hospital's rule)
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Undergrad Inverse Laplace transform of a rational function
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Undergrad Extract a derivative from an equation
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High School Tangents to a curve as functions of different variables
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5
DE 20 ty'+(t+1)y=t y(\ln{2}=1, t>0
  • karush
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10
Undergrad Velocity Vector Transformation from Cartesian to Spherical Coordinates
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2
DE 19 t^3y'+4t^2y=e^{-t} y(-1)=1,t>0
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9
De 17 y'-2y=e^{2t} y(0)=2
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9
Undergrad Find the area enclosed by the curve y = x csch(x+y)
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DE 2.1.1.16 Find the solution of the give initial value problem
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Undergrad Wolfram Mathworld's article on Cauchy-Riemann Equations
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23
How to Find the Limit of a Power Function Using Desmos?
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How is z=2xy a Hyperbolic Paraboloid in the rotated 45° in the xy-plane?
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S8.3.7.4. The sum of two positive numbers is 16.
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Undergrad How to calculate this Bessel's terms limit?
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S8. 3.7.10 at which photosynthesis takes place (min/max)
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Undergrad Behavior of a function for large x?
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4
Which of the following statements is true?
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Undergrad Differentiability assumptions of Wirtinger derivatives
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Undergrad Laplace transform of an expression using transform tables
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High School Confused about holding variables constant during integration
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Real Roots of Polynomial Minimization Problem
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Undergrad Alternative Definitions of the Epsilon-Delta
  • Calculuser
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Graduate Higher dimensional FTC in electrostatics: Mathematically rigorous or not?
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S8.3.7.3. whose sum is a minimum
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Undergrad Question about Lagrange multipliers
  • dRic2
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13
Undergrad Changing to Polar coordinates in order to calculate this integral
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3
Undergrad Integrate 1/(x*lnx): Integration by Parts
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Undergrad What is the average value of a bounded periodic function over a period?
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Undergrad Derivative of a complex function along different directions
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Undergrad Is this PDF file the correct derivation?
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Graduate Evaluation of an improper integral leading to a delta function
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Undergrad How shall we derive the second equation from first?
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Undergrad Change of variables for this derivative in a heat transfer equation
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High School Is it possible to find complex numbers Cn, so that both equations are satisfied?
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Undergrad Am I using the right limits on this triple integral?
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High School Bartlett's Calculus Paper: Confusing Calculus Notation & Differentials
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Graduate How Does Sincov's Functional Equation Validate the Condition F(x,y) = F(0, y-x)?
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Undergrad Understanding Mixed Partial Derivatives: How Do You Solve Them?
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