metr:=testar:
conf:=pres:
var:=[mu, theta]:
comp:=[c^2*sinh(mu)^2*cos(theta)^2+c^2*cosh(mu)^2*sin(theta)^2, 0, c^2*sinh(mu)^2*cos(theta)^2+c^2*cosh(mu)^2*sin(theta)^2]:
