stalla notes describe how to use calculator to find bond price between coupons, not only accrued interest but also partial principle amortization based on difference between coupon and YTM (for eg, discount bond prices will move closer to par value from discounted value every period, if bond is sold between the period the bond price will somewhere in between two prices) i found it very tedious to remember how to use my TI BA II for this calculation, i usually guess the answer close to begin or end of period. I got some questions wrong because of difference in 2nd or 3rd decimal place, which is very frustrating. Anyone else facings same problem? or its only me who finds this calculation so tedious?