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Apr
13
comment Burger's Equation Shock Solutions
@user137302, both. $c$ is an arbitrary constant.
Apr
12
answered Characteristics PDE with discontinuity
Apr
12
answered Burger's Equation Shock Solutions
Apr
12
answered Solve a partial diferential equation $u_x^2+u_y^2=u^2$
Apr
10
revised Method of characteristics inhomogeneous nonlinear wave equation
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Apr
10
revised Solve Partial differential equation(geometric optics)
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Apr
9
revised Solve Partial differential equation(geometric optics)
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Apr
9
revised Solve Partial differential equation(geometric optics)
added 488 characters in body
Apr
9
answered Solve Partial differential equation(geometric optics)
Apr
9
revised Solve Partial differential equation(geometric optics)
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Apr
9
comment A nonlinear ODE of $3$rd order
@Yiorgos S. Smyrlis: You will get the general solution $f(\text{independent variable})=C_3-6^\frac{2}{3}~\zeta\left(\dfrac{\text{independent variable}+C_1}{\sqrt[3]6};2\sqrt[3]6,C_2\right)$ , but do you really have confident to handle all conditions?
Apr
7
answered Invalid subtraction when solving system of equations?
Apr
6
revised How prove this equation roots $\frac{1}{x}=\frac{1}{a}+\frac{1}{b}+\frac{1}{c}+2\sqrt{\frac{1}{ab}+\frac{1}{ac}+\frac{1}{bc}}$
edited tags; edited tags
Apr
6
asked About the great result of $\int\underbrace{x^{x^{\cdot^{\cdot^x}}}}_m~dx$
Apr
5
revised What is the value of $\int x^x~dx$?
edited body; edited tags; edited title
Apr
5
answered What is the value of $\int x^x~dx$?
Apr
5
revised Series Expansion Of An Integral.
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Apr
3
answered Solve PDE with the Fourier transform
Apr
3
answered Nonlinear PDE from Riemannian Geometry
Apr
3
revised :How to find the general solution of $(y+ux)u_x+(x+yu)u_y=u^2-1$?
added 218 characters in body