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Differential Equations

Mixed approximation vs. full approximation for a power series expansion
6.8K threads
Undergrad Mixed approximation vs. full approximation for a power series expansion
Graduate Limit solving without using series
  • Mark J.
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2
Undergrad Can you explain Euler's Equation and KVL in engineering?
  • iRaid
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14
Graduate Partial derivatives of 3D rotation vectors
  • Jellyf15h
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1
Kaska's question at Yahoo Answers involving related rates
  • MarkFL
  • · Replies 1 ·
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1
Formula for a geometric series with variable common ratio
  • ATroelstein
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3
Find Magnitude of Gradient in Vector Y(x2,x3,x4)
  • aplrt
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4
Undergrad More general formula for integrals
  • echandler
  • · Replies 7 ·
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7
Rebekah's question at Yahoo Answers involving inverse trigonometric functions
  • MarkFL
  • · Replies 1 ·
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1
Graduate Asymmetric Clipped Waveform - find RMS
  • pdelaney
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1
For which parameter values the function is continuous and differentiable
  • Yankel
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3
Undergrad Need help with some limit (using sandwich rule)
  • calcu
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1
Undergrad Does anyone know a database for nth roots of unity
  • dumbQuestion
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3
Graduate What Do Partial Derivatives Tell Us in Thermodynamics and Beyond?
  • Mandelbroth
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1
Undergrad Finding the major and minor axis of ellipse
  • yungman
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4
Jordan's question from Facebook (finding critical points)
  • Jameson
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1
Graduate Derivative by Leibniz's integral rule
  • Undoubtedly0
  • · Replies 5 ·
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5
Undergrad Partial derivative and chain rule
  • rsaad
  • · Replies 1 ·
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1
Graduate Infinite sequences containing every possible subsequence
  • pob1212
  • · Replies 10 ·
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10
Rickkyredu's question at Yahoo Answers (shell method for solid of revolution)
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Why Do Algebraic Tricks in Calculus Confuse Me?
  • mindheavy
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5
Proofs on growth rates of functions theorems using definition of a limit
  • ATroelstein
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3
Graduate How Does the Ratio of Lattice Points to Radius Behave as Radius Increases?
  • Shoelace Thm.
  • · Replies 1 ·
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1
Partial Fraction Decomposition Help - Calculus BC
  • MarkFL
  • · Replies 1 ·
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1
Struggling with Logarithmic Expansion - Can You Help?
  • Tranquillity
  • · Replies 6 ·
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6
Graduate Prove Two/Three Euler Angles Needed for Orientation Change
  • TheFerruccio
  • · Replies 3 ·
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3
Calculating moments of inertia
  • Dustinsfl
  • · Replies 4 ·
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4
Undergrad Question about Leibniz's notation for derivatives
  • paul2211
  • · Replies 9 ·
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9
Integration by Parts: Calculus Integral Help?
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Understanding the Error of Taylor Polynomials in Approximating Functions
  • wahaj
  • · Replies 2 ·
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2
Center of Mass Calculus 2 Integration
  • Dustinsfl
  • · Replies 4 ·
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4
Graduate Solving a Divergence Question: What Equation Do I Use?
  • matematikuvol
  • · Replies 5 ·
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5
Undergrad Provide some rotations to obtain common shapes?
  • Permanence
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6
Undergrad Why do some functions not have Anti derivatives?
  • Hysteria X
  • · Replies 13 ·
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13
Undergrad Solids of Revolution around y = x
  • TheAbsoluTurk
  • · Replies 10 ·
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10
What Is the Range of sec^4(x) + csc^4(x)?
  • abender
  • · Replies 10 ·
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10
Undergrad Function Describing Caloric Target
  • CaseyJRichard
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2
Undergrad Are the following two integrals equivalent? [basic]
  • Permanence
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2
Undergrad What is the difference between dy/dx, Δy/Δx, δy/δx and ∂y/∂x?
  • CraigH
  • · Replies 10 ·
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10
What is the geometric interpretation of a \centerdot c = 0?
  • GreenGoblin
  • · Replies 10 ·
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10
Stuart's question at Yahoo Answers regarding average value of a function
  • MarkFL
  • · Replies 1 ·
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1
Graduate Discrete Fourier Transform and Hand-waving
  • mathman44
  • · Replies 2 ·
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2
Prove the Integral: $$\frac{-\pi}{4}$$
  • The Lord
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3
Undergrad Diffrentiability of function with two variable
  • The Rahul
  • · Replies 6 ·
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6
Karla's question at Yahoo Answers (Intermediate Value Theorem).
  • Fernando Revilla
  • · Replies 1 ·
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1
Undergrad How Do You Derive a = mg / (M + m) from the Given Equations?
  • shanemcguffin
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2
Graduate How fast are planets flowing into stars? I got the equations.
  • astrostuart
  • · Replies 6 ·
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6
Bruno's question at Yahoo Answers (Tangent line to an ellipse).
  • Fernando Revilla
  • · Replies 2 ·
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2
Graduate What is the divergence of a unit vector not in the r direction?
  • SiggyYo
  • · Replies 3 ·
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3
Undergrad Critical Points of cos y & cos 2x - Why the Difference?
  • rsaad
  • · Replies 2 ·
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2
Graduate Integral from 0 to ∞ with singularity at x=0
  • RedSonja
  • · Replies 3 ·
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3
Undergrad How to Simplify Inductor Expressions Using Calculus?
  • xconwing
  • · Replies 2 ·
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2
Graduate Can the integral be evaluated without Mathematica?
  • mmzaj
  • · Replies 2 ·
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2
Solving the Continuous Function | Hello
  • Yankel
  • · Replies 3 ·
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3
Undergrad Astro-Physics: Math Struggles & Domains of Functions
  • DeepSpace9
  • · Replies 2 ·
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2
Graduate Derivation of Del Operator in Spherical & Cylindrical Coordinates
  • dexterdev
  • · Replies 5 ·
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5
Undergrad I don't understand how to differentiate integrals
  • sarahaha44
  • · Replies 9 ·
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9
What Are the Values of a and b for a Cubic Curve's Tangent Line?
  • MarkFL
  • · Replies 1 ·
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1
Numerical Integration: Find x to 3 Decimal Points
  • Albert1
  • · Replies 9 ·
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9
Graduate Derivative of Log Determinant of a Matrix w.r.t a scalar parameter
  • fbelotti
  • · Replies 5 ·
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5
Limit Calculation Help: x^3(ln(x))^2
  • Yankel
  • · Replies 1 ·
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1
Undergrad Physical and geometrical meaning of limits
  • shivakumar06
  • · Replies 2 ·
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2
Lamps's question at Yahoo Answers about the Intermediate Value Theorem
  • Fernando Revilla
  • · Replies 1 ·
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1
De l'Hospital's theorem - proof
  • Arnold1
  • · Replies 6 ·
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6
Sydney's question at Yahoo Answers regarding root approximation
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Greens theorem and parametrization
  • Syrena
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2
Undergrad Solid of revolution knowing only area?
  • joeblow
  • · Replies 6 ·
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6
Undergrad Is Integration by Parts the Key to Solving Complex Equations?
  • Ein Krieger
  • · Replies 3 ·
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3
Explore Challenge Forums: Can You Solve this Integral?
  • The Lord
  • · Replies 1 ·
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1
How Does Integration by Parts Solve the Integral of Tanh(x)/(xe^x)?
  • alyafey22
  • · Replies 3 ·
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3
Graduate Can we Simplify the Integration of Q Function with a Change of Variable?
  • myarram
  • · Replies 3 ·
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3
Undergrad Why do we use anti-derivatives to find the values of definite integrals?
  • tahayassen
  • · Replies 18 ·
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18
Undergrad Question about the meaning of derivative .
  • thewoodpecker
  • · Replies 5 ·
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5
Janet's question at Yahoo Answers involving the Witch of Agnesi
  • MarkFL
  • · Replies 1 ·
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1
Ahmed's question at Yahoo Answers regarding the midpoint rule
  • MarkFL
  • · Replies 1 ·
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1
Maximizing Gamma with Lagrange Multipliers
  • Dustinsfl
  • · Replies 3 ·
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3
Undergrad Finding Limits of Functions with Multiple Sets of Variables
  • Mathoholic!
  • · Replies 5 ·
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5
Undergrad How did this expansion take place?
  • M. next
  • · Replies 6 ·
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6
Undergrad Trigonometric Inverse Substitution: How do we know which substitutions to use?
  • tahayassen
  • · Replies 7 ·
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7
Optimizing the Area of a Norman Window - 25 Feet Perimeter
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Discrete Fourier Transform on even function
  • mathman44
  • · Replies 10 ·
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10
Undergrad Integration: what variables can you move outside of the integrand?
  • tahayassen
  • · Replies 5 ·
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5
Katie's question at Yahoo Answers: trigonometric equation
  • Fernando Revilla
  • · Replies 5 ·
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5
Graduate Method of Proving Euler's Formula?
  • Mandelbroth
  • · Replies 12 ·
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12
F continuous and {f(x)} = f({x}) implies f(x) or f(x)-x periodic
  • Fernando Revilla
  • · Replies 4 ·
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4
Mohammad nabeel's question at Yahoo Answers regarding a definite integral
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Why won't standard curve length function work in semi-circle?
  • cantRemember
  • · Replies 13 ·
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13
How to Prove Continuity Using the Epsilon-Delta Definition?
  • GreenGoblin
  • · Replies 3 ·
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3
B's question at Yahoo Answers involving a solid of revolution
  • MarkFL
  • · Replies 1 ·
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1
Undergrad Integrating 3x^2*ln(x) - Is This Process Correct?
  • feynmanpoint
  • · Replies 2 ·
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2
Undergrad Finding the position directly behind a player
  • wolfknight
  • · Replies 3 ·
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3
Graduate Partition a divergent integral into finite values
  • LikeMath
  • · Replies 3 ·
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3
Graduate Integration by Parts in 2D: How to Apply the Rule in Polar Coordinates?
  • soks
  • · Replies 1 ·
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1
Undergrad Piecewise Functions: Parabola Vertex on x-axis +ve, One Function?
  • Coco12
  • · Replies 7 ·
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7
Undergrad Why do we use the natural log in the derivative of an exponential function?
  • QuickLoris
  • · Replies 6 ·
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6
Definite Integral #2: Prove \[\pi/2 \text{sech}(\pi/2)\]
  • sbhatnagar
  • · Replies 4 ·
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4
Michael's question at Yahoo Answers involving L'Hôpital's rule
  • MarkFL
  • · Replies 2 ·
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2
Undergrad How to know which differential to choose
  • wahaj
  • · Replies 10 ·
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10
Graduate Maximal invariance group for constant acceleration?
  • strangerep
  • · Replies 0 ·
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0
Undergrad Showing the properties of differentiating an integral
  • greswd
  • · Replies 5 ·
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5
Maximizing Area for $6000: Fencing Solutions
  • Yankel
  • · Replies 4 ·
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4