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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 Tricky DeltaFunction integration
  • sukharef
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4
Simplifying the Difference Quotient for f(x) = 1/x
  • tmt1
  • · Replies 1 ·
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1
Undergrad Is proving details in calculus important?
  • davidbenari
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7
Undergrad Partial derivative properties rule
  • shabnam
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4
Graduate Path Independence: My Book vs Reality
  • bmrick
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1
Undergrad Definition & Proving Differentiability: A Function f at a Point a
  • Unusualskill
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2
Area under the curve of a projectile
  • Vedant97
  • · Replies 4 ·
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4
Undergrad Trying to cut a parabolic shape in sheet metal
  • JoMo
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3
Graduate Cauchy product with both extremes infinites
  • DavideGenoa
  • · Replies 4 ·
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4
Epsilon Delta Proof Piecewise function
  • Dethrone
  • · Replies 8 ·
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8
Clarification of Delta-Epsilon Proof
  • Dethrone
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3
How Is $\delta = \sqrt{9+\epsilon}-3$ the Largest Choice in a Limit Proof?
  • Dethrone
  • · Replies 3 ·
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3
Is This Calculation of the Laplace Transform Correct?
  • Drain Brain
  • · Replies 1 ·
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1
Undergrad One sided limit with two answers?
  • Woolyabyss
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3
Improper Integral Question (convergence & evaluation)
  • Amad27
  • · Replies 4 ·
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4
Challenging Logarithmic Integral: What Methods Can Solve It?
  • Amad27
  • · Replies 21 ·
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21
Undergrad What statements can you apply to infinity
  • TheScienceOrca
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7
Is Absolute Value Necessary for Proving Limit with Epsilon for $\frac{1}{x^4}$?
  • Dethrone
  • · Replies 2 ·
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2
Why curvature of a plane curve is k =d(phi)/ds?
  • A330NEO
  • · Replies 2 ·
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2
Graduate Question about nonelementary integrals
  • DivergentSpectrum
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1
Undergrad Limit Proof Confusion: How does sN+2 cancel with sn-1 in this limit proof?
  • MstrGnrl
  • · Replies 4 ·
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4
Undergrad Integral Notation: Are ∫(x^2)dx & ∫dx (x^2) the Same?
  • DiracPool
  • · Replies 4 ·
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4
Interval for the Length of an Arc
  • ineedhelpnow
  • · Replies 14 ·
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14
Where Can I Find Four Points on an Elliptic Paraboloid Graph?
  • ineedhelpnow
  • · Replies 6 ·
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6
Undergrad Understanding limits of rational functions at infinity
  • Aramin
  • · Replies 6 ·
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6
How Do You Identify and Sketch Quadric Surfaces from Equations?
  • ineedhelpnow
  • · Replies 14 ·
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14
How to find the derivative of the absolute value of a vector?
  • A330NEO
  • · Replies 2 ·
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2
Velocity/acceleration/speed of a particle
  • ineedhelpnow
  • · Replies 10 ·
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10
Graphing x=t, y=1/(1+t^2), z=t^2 - Is it a Parabola?
  • ineedhelpnow
  • · Replies 5 ·
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5
Solving for r(t): $r_0+tv$ vs. $ (1-t)r_0+tr_1$
  • ineedhelpnow
  • · Replies 3 ·
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3
Sketch the region of |x-y|+|x|-|y| <= 2
  • Dethrone
  • · Replies 15 ·
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15
Undergrad Minimizing and optimization related rate problem
  • Alphax
  • · Replies 2 ·
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2
Arc Length C: Origin to (6,18,36)
  • ineedhelpnow
  • · Replies 5 ·
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5
Parametric Equations of Line Passing Through (0,1/2,1) and (2,1,-3)
  • ineedhelpnow
  • · Replies 8 ·
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8
Reviewing Cross Product: Simplest Method Possible
  • ineedhelpnow
  • · Replies 4 ·
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4
Magnitude and angle of vector sum
  • ineedhelpnow
  • · Replies 34 ·
2
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34
Extremely Difficult Extremum Problem.
  • Amad27
  • · Replies 47 ·
2
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47
Do you say this integration is doable?
  • clumps tim
  • · Replies 1 ·
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1
Graduate Solve This Integral with Help from Experts | Forum Discussion
  • Wort
  • · Replies 9 ·
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9
How do I determine the type of discontinuity for a discontinuous function?
  • LostMathStudent
  • · Replies 4 ·
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4
Undergrad Calculus Confusion: limit of sin(x)/x
  • 97313
  • · Replies 5 ·
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5
Graduate Why Does the Gradient Behave Differently in Cylindrical Coordinates?
  • bmrick
  • · Replies 3 ·
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3
Undergrad Taylor's Formula: Usage & Calculation for Calculators
  • Curious09
  • · Replies 4 ·
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4
Question about implicit differentiation
  • find_the_fun
  • · Replies 4 ·
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4
How Do You Integrate $\int \frac{1}{1-e^x} dx$ with Substitution?
  • karush
  • · Replies 9 ·
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9
What Is the Delta Epsilon Proof in Terms of Pizza Cooking?
  • ineedhelpnow
  • · Replies 2 ·
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2
Solving Inequalities with Absolute Values
  • Dethrone
  • · Replies 2 ·
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2
What is the Integral of e^√x/√x?
  • karush
  • · Replies 4 ·
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4
High School Area between two curves; choosing when to integrate with x or y?
  • emlekarc
  • · Replies 1 ·
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1
Graduate Solve Convergent Series with Mathematica: Pi Squared/8
  • Hertz
  • · Replies 3 ·
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3
Graduate What is causing the NMinimize error in my Mathematica calculation?
  • gaby287
  • · Replies 3 ·
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3
How Do You Integrate $\int^1_0 \log^2(1-x) \log^2(x) \, dx$?
  • alyafey22
  • · Replies 1 ·
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1
Graduate Calculus of variations and integrands containing second derivatives
  • ShayanJ
  • · Replies 10 ·
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10
Graduate Bijection between parameters in integral formula
  • pierebean
  • · Replies 2 ·
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2
Graduate Is the Hessian Matrix anything more than a mnemonic?
  • wotanub
  • · Replies 2 ·
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2
Undergrad How to graph parametric equations?
  • Meowy
  • · Replies 2 ·
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2
Integral Inequality: Prove $\left|f\left(\frac{1}{2}\right)\right|$ Bound
  • Euge
  • · Replies 5 ·
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5
Undergrad Integration by substitution for sin/cos products
  • phoneketchup
  • · Replies 3 ·
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3
Graduate Differentiation in Minkowski Spacetime
  • branch
  • · Replies 10 ·
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10
Proving $2- \epsilon < y$ for Limit w/ Epsilon
  • Dethrone
  • · Replies 1 ·
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1
Solving an integral using Differentiation under the integral sign
  • MBM1
  • · Replies 7 ·
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7
High School Math Diversities: 4 Solutions to 10X=4X
  • alionalizoti
  • · Replies 2 ·
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2
Undergrad Logarithm differentiation + chain rule
  • JamesGoh
  • · Replies 10 ·
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10
Graduate Convergence of a Recursive Sequence: Proving a_n*c*n\rightarrow 1 for Positive c
  • happyxiong531
  • · Replies 4 ·
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4
Integration with trig and hyperbolic substitutions
  • Dethrone
  • · Replies 89 ·
3
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89
Double Sum Challenge: Equate the Limit
  • mathbalarka
  • · Replies 4 ·
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4
Undergrad Linear transformations: function arguments
  • pamparana
  • · Replies 9 ·
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9
What is the Radius of Convergence for the Power Series?
  • Julio1
  • · Replies 2 ·
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2
Graduate Validity of integral involving delta function
  • SarthakC
  • · Replies 11 ·
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11
Graduate Why can a smooth function be described with fewer terms in a Fourier series?
  • Nikitin
  • · Replies 3 ·
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3
Undergrad Levi-Civita symbol for cross products?
  • Nikitin
  • · Replies 3 ·
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3
Undergrad Differentiating complex exponential
  • sozener1
  • · Replies 2 ·
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2
How can we recognize standard integrals here
  • Dethrone
  • · Replies 7 ·
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7
How Does One Solve the Integral of Logarithmic Functions Over a Unit Interval?
  • alyafey22
  • · Replies 5 ·
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5
Why do the answers differ by a factor of 7?
  • Dethrone
  • · Replies 5 ·
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5
Undergrad Differentiating using a product rule
  • sozener1
  • · Replies 2 ·
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2
What Does the Graph of This Vector Equation Look Like?
  • ineedhelpnow
  • · Replies 12 ·
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12
Graph $r(t)$ for t = $\pi/4$: Position and Tangent Vectors
  • ineedhelpnow
  • · Replies 2 ·
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2
Undergrad How Do I Integrate the Derivative Squared?
  • SgrA*
  • · Replies 12 ·
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12
Definition of a derivative - absolute value
  • Dethrone
  • · Replies 7 ·
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7
How Do You Sketch Position and Tangent Vectors for a Vector Function?
  • ineedhelpnow
  • · Replies 2 ·
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2
Piecewise function - rational and irrational
  • Dethrone
  • · Replies 4 ·
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4
Match Parametric Equations with Graphs - Explanation Help for 21, 23, and 25
  • ineedhelpnow
  • · Replies 20 ·
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20
Graduate Can integral be replaced by constant
  • smslce
  • · Replies 5 ·
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5
Undergrad What to use and how to best do it?
  • SteliosVas
  • · Replies 10 ·
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10
Finding the Minimum Value of a Summation with a Constant Term
  • Dethrone
  • · Replies 9 ·
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9
What are the Domain and Asymptotes of the Equation x²y + xy² = 2?
  • leprofece
  • · Replies 8 ·
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8
Undergrad How Does the Denominator x+a Become 1-t in Integral Substitution?
  • Belgium 12
  • · Replies 1 ·
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1
Graduate Chain Rule, Differentials "Trick"
  • paradoxymoron
  • · Replies 4 ·
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4
Graduate General meaning of line integral in vector fields
  • Siddartha
  • · Replies 6 ·
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6
Minimize sum of number & reciprical + proof
  • Dethrone
  • · Replies 14 ·
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14
How do I find the area inside one circle and outside another?
  • Dethrone
  • · Replies 28 ·
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28
Undergrad Extreme Value Theorem true for constants?
  • member 508213
  • · Replies 9 ·
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9
Undergrad How to Shift a Polynomial Curve by a Fixed Distance?
  • zzinfinity
  • · Replies 11 ·
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11
Evaluate Logarithm Integral from 0 to 1
  • alyafey22
  • · Replies 4 ·
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4
Finding Vector and Parametric Equations for a Segment Joining Two Points
  • ineedhelpnow
  • · Replies 17 ·
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17
Finding F'(x) for $\int_{1}^{2x}\frac{1}{1-t^{3}} \,dx$
  • karush
  • · Replies 5 ·
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5
Find the volume by revolving around the x-axis without expanding
  • karush
  • · Replies 7 ·
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7
Unraveling the Complexity of a Limit Problem Involving ln(x)
  • Dethrone
  • · Replies 5 ·
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5
High School Algebraic manipulation of sum of squares.
  • tleave2000
  • · Replies 6 ·
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6