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Solving ODE with initial conditions uses a spurious and unnecessary initial value equal to unity

calculus-and-analysis

modified yesterday Quasar Supernova 1,166

3

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3

answers

189

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solution of $\frac{1}{x}=\infty$

equation-solving calculus-and-analysis

modified yesterday Michael E2 196k

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3

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77

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How to extract a factor from equation and rearrange the equation?

calculus-and-analysis simplifying-expressions expression-manipulation

modified yesterday Akku14 11k

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1

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74

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Different results in different versions of Mathematica (computing integrals)

calculus-and-analysis integral-equations

modified Jun 20 at 5:50 FA mn 1

4

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1

answer

75

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Substitute known function's derivative

calculus-and-analysis replacement symbolic

answered Jun 19 at 10:30 mikado 12.7k

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4

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130

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Are there any alternatives for NIntegrate to calculate the area for which $f(x,y)<0$?

calculus-and-analysis numerical-integration numerics mathematical-optimization boolean-computation

modified Jun 18 at 22:11 eyorble 7,838

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2

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50

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Error when integrating with constants?

plotting equation-solving calculus-and-analysis parametric-functions integral-equations

modified Jun 18 at 20:03 Community♦ 1

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0

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47

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Closed form for integral with SinIntegral

calculus-and-analysis numerical-integration integral-transforms

asked Jun 18 at 12:31 Mariusz Iwaniuk 10.4k

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3

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453

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Integrating a real function I get a complex value, while after variable transformation the result is real. Bug?

calculus-and-analysis numerical-integration special-functions complex

modified Jun 18 at 0:35 Artes 52.5k

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2

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219

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Integrating an exponential with upper incomplete gamma functions

calculus-and-analysis special-functions

modified Jun 16 at 23:21 Artes 52.5k

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2

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297

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Total flux of the gradient of the numerical solution of a PDE through a surface

differential-equations calculus-and-analysis numerical-integration finite-element-method heat-transfer-equation

modified Jun 16 at 20:46 Tim Laska 14.6k

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1

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49

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Integral with exponential function

calculus-and-analysis mathematical-optimization integral-equations

answered Jun 16 at 14:31 Michael E2 196k

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3

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305

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Express MeijerG as integral

calculus-and-analysis simplifying-expressions special-functions algebraic-manipulation

modified Jun 13 at 21:10 mikado 12.7k

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4

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168

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Bilinearization with Mathematica - where to start?

calculus-and-analysis nonlinear

modified Jun 11 at 15:36 Cesareo 3,250

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