"import" 'numpy' "as" 'np' "import" 'matplotlib pyplot' "as" 'plt'

"import" 'numpy' "as" 'np'
"import" 'matplotlib.pyplot' "as" 'plt'
"from" 'mpl_toolkits.mplot3d' "import" 'Axes3D'
k= int(input('k ni qiymatini kiriting'))

def u(x,t):

return (1/k)*np.exp(-(k**0.5))*np.cos(k*x)*np.sinh(k*t)

fig = 'plt'.figure(fisize=(0,1))

ax_3d = Axes3D(fig)

x = np.arange(-10,10.01,0.01)

y = np.arange(-10,10.01,0.01)
xgrid , ygrid = np.meshgrid(x,y)

print('xgrid:' ,xgrid)

print('ygrid:',ygrid)
zgrid = u(xgrid , ygrid)
ax_3d.plot_wireframe(xgrid,ygrid,zgrid)

ax_3d.set_xlabel('x')

ax_3d.set_ylabel('y')
ax_3d.set_zlabel('z')
plt.show()