BTW, when Easter will be each year is a matter of simple calculus.
i = c - c / 4 - ( c - k ) / 3 + 19 * n + 15
i = i - 30 * ( i / 30 )
i = i - ( i / 28 ) * ( 1 - ( i / 28 ) * ( 29 / ( i + 1 ) ) * ( ( 21 - n ) / 11 ) )
j = y + y / 4 + i + 2 - c + c / j = j - 7 * ( j / 7 )
m = 3 + ( l + 40 ) / 44d = l + 28 - 31* ( m / 4 )
And here, you were thinking that that course you took was worthless.