**Language is SCHEME (R5RS)**

1. Define H,- + + ..t ; these are referred to as the harmonic numbers. A remarkable fact about these numbers is that as n increases, they turn out to be very close to lnn. (ln n is the natural logarithm of n.) In particular, as n increases the difference Hn Inn converges to a constant (Euler's constant). Show how to use SCHEME to compute Hn by writing a SCHEME function named (harmonic n). Using your function, give an estimate of Euler's constant. (You may wish to use the SCHEME function (log x) which returns the natural logarithm of x.) So you know you are in the ballpark, Euler's constant is a little over a half