Card 



Columns 



Item 



Field Label 



46-54 i^h change in unit price, product 3 XXXXX.XXX CPR3(M) 



(Card 13 may be repeated 8 times if additional price assumptions are needed.) 



14 1-2 Terminal (punch 98 or 99) 



Punch 98 if another problem follows 

 Punch 99 if last problem 



15 1-10 NEW FOREST - used only if problem that 



follows is from a new user 



SAMPLE PROBLEMS 



Following are seven sample problems pre- 

 pared as input by a single user. The data input 

 forms for the seven problems are shown in 

 figures 7-13, 



Problem 1 illustrates use of the general eval- 

 uation option with two alternatives or plans 

 in which only periodic costs and incomes are 

 involved. 



Problem 2 again illustrates the general op- 

 tion but with periodic and annual costs and 

 incomes. The problem is treated first as a 

 perpetuated series and second as a terminat- 

 ing series. 



Problem 3 is the same as problem 1 but the 

 job of figuring product yields is left to the 

 computer. 



Problem 4 illustrates use of the stand re- 

 placement option. The problem here is to 

 evaluate the financial advantage of cutting a 

 stand now over holding it another 10 years. 



Problem 5 is another illustration of the 

 stand replacement option, but this time two 

 stands are compared. 



Problem 6 illustrates use of the timber stand 

 improvement (TSI) program option. Two com- 

 parisons are made: In the first a plan calling 

 for no TSI work is compared with a plan in- 

 cluding thinning, and in the second, a plan 

 calling for no TSI work is compared with a 

 plan calling for pruning in addition to thinning. 



Problem 7 illustrates use of the program in 

 timber sale planning. 



A Word About the Input 



Problem 1, Note that in addition to user 

 identification and problem title and descrip- 

 tion, only seven cards are required — one card 

 giving interest rate and program and output 

 specifications, one card for general program 

 control data, and five cards for periodic cost 

 and income data. 



Problem 2. This problem contains both 

 periodic and annual costs and incomes. It 

 requires the same type of input as problem 1 

 except that nine cards are required to enter 

 all the periodic cost and income information 

 and two cards are required to enter the annual 

 costs. 



Problem 3, This problem utilizes the prod- 

 uct evaluation option and requires a product 

 option control card, a card identifying the 

 product and unit of measure, six cards to 

 feed in product data, and a card giving prod- 

 uct price. Note that the product control card 

 specifies a maximum of six products, with 

 six in alternative or plan 1 and four in alter- 

 native or plan 2. Note also that product price 

 is expected to increase at the rate of .005 per- 

 cent per year. 



Problem 4. This problem, which utilizes 

 the stand replacement option, requires one 

 set of cards describing the future timber grow- 

 ing opportunity and a second set describing 

 the present stand conversion opportunity. In 

 this problem, which is to evaluate the financial 

 advantage of cutting a stand now or holding 

 it another 10 years, the future timber growing 

 opportunity is assumed to be the same in 



33 



