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crinkly    
a. 起皱的,绉褶多的,卷缩的

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  • Electric Field Produced by a Finite Charged Wire - Physics Forums
    The problem involves calculating the electric field produced by a finite charged wire with a linear charge density at a specific point above its midpoint The context is rooted in electrostatics and requires the application of integral calculus to derive the electric field expression in terms of given parameters Exploratory, Mathematical reasoning, Problem interpretation Participants discuss
  • Electric Field of a Uniform Ring of Charge • Physics Forums
    Some suggest that the integral of charge elements across the ring sums to the total charge, while others discuss the implications of using definite integrals versus indefinite integrals in physics problems The discussion is ongoing, with various perspectives on the use of integration limits and constants being shared
  • Can poles on the contour still be used with the residue theorem?
    The discussion revolves around the application of the residue theorem to integrals of the form \ (\int_0^ {2 \pi} f (\cos {\theta},\sin {\theta}) d\theta\), particularly when poles of the integrand lie on the contour of integration Participants explore whether it is valid to indent around these poles and how to handle the contributions from them One participant expresses concern that poles
  • Ideal Gas Equation and Polytropic Constant • Physics Forums
    The original poster attempts to derive the work done using the integral of pressure and volume, while questioning the validity of substituting different forms of the ideal gas equation Participants raise concerns about the interpretation of the variable "n" in different contexts and the implications for volume calculations
  • Understanding Integration of 1 (x^2 + a^2) and the Role of the Tan . . .
    There is a suggestion to evaluate the indefinite integral ∫ (1 (1+x²))dx as a starting point for understanding the integration of 1 (x² + a²) Participants discuss using the substitution x = tan (y) to compute the integral, indicating that this method is effective for transforming the integral into a more manageable form





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