object slip1
{
def main(args:Array[String])
{
var det=0
var a=Array.ofDimInt
a(0)(0)=1
a(0)(1)=2
a(1)(0)=3
a(1)(1)=4
println("matrix")
for(i<-0 until 2)
{
for(j<-0 until 2)
{
print(a(i)(j)+"\t")
}
println()
}
det=a(0)(0)*a(1)(1)-a(0)(1)*a(1)(0)
println("determinant="+det)
}
}
