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Program to find the scalar product of two vectors

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C      Program to find the scalar product of two vectors
        dimension x(20),y(20)
        product=0.0
        write(*,*)'Enter the total no. components in each vector:'
        read(*,*)n
        write(*,*)'Enter the components of the first vector:'
        do i=1,n
        read(*,*)x(i)
        end do
        write(*,*)'Enter the components of the second vector:'
        do i=1,n
        read(*,*)y(i)
        end do
        do i=1,n
        product=product+x(i)*y(i)
        end do
        write(*,*)'The scaler product of the vectors :',product
        end
       

       
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