Pragabhava
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 Apr14 reviewed Close How to determine where a non-linear PDE is elliptic, hyperbolic, or parabolic? Apr13 comment Complex contour integral with sign function:$-i \int \limits_{-\infty}^\infty \frac{{\rm sgn}(x)^2 ~x~ e^{i x}}{1+ax^2} dp$ $\text{}\text{}dp$? Apr10 comment Method of characteristics inhomogeneous nonlinear wave equation Studying the Burger's equation, as @user88595 suggest, will not only help you to derive the solution, but also to understand how it behaves. Apr10 revised Method of characteristics inhomogeneous nonlinear wave equation added 116 characters in body Apr10 answered Method of characteristics inhomogeneous nonlinear wave equation Apr8 reviewed No Action Needed How to solve an overdetermined linear system given equations with different uncertainties Apr8 reviewed Close Geometrical interpretation of tan(x) > x Apr8 reviewed Leave Open Open quotient of second countable space is second countable Apr8 reviewed Leave Closed How can I move the matrix element diagonally? Apr8 reviewed Reviewed show norm of self-adjoint operator is maximum of abs value of eigenvalue Apr8 revised show norm of self-adjoint operator is maximum of abs value of eigenvalue texified it Apr8 reviewed Leave Open Determining how accurate an ellipse fit is Apr1 reviewed Close $f:A \backslash U\to B \backslash f(U)$ is also homeomorphic? Apr1 reviewed Leave Open Confidence interval 95 %, how many colorblind? Apr1 reviewed Leave Open Minimum area of a triangle Apr1 reviewed Close Finding the absolute min and max Apr1 reviewed Close linear differential equation problem Mar26 reviewed Leave Open Should I use the ratio test to determine convergence for $\sum_{k = 1}^{\infty}{1 \over k\left[1 + \ln^{2}\left(k\right)\right]}$? Mar4 reviewed Approve Show that $\sum\limits_{k=0}^\infty (-1)^k \frac{1}{\sqrt{k+1}}$ converges but not absolutely Mar4 reviewed Close Proving $1 + 1 = 2$