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Transactor
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Transactor_14_1986_Transactor_Publishing.d64
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loan principal
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Commodore BASIC
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2023-02-26
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490b
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20 lines
100 rem loan principal
110 s$=" "
115 w=10: rem numeric field width
120 open 1,3: rem 1,4 for printer
130 input"annual interest rate .12[157][157][157][157][157]";i
140 input" number of payments 48[157][157][157][157]";n
150 i=i/12 :rem monthly int
160 print#1,"interest="i", # payments="n
170 print#1,chr$(13);"[205]onthly [208]mts [208]rincipal"
175 :
180 for pv=10 to 1000 step 10
185 rem calculate loan principal
190 p=pv*(1-(1+i)^(-n))/i
195 rem format 'p'
200 p$=right$(s$+str$(int(p*100+.5)),w)
210 print#1,pv,left$(p$,len(p$)-2)"."right$(p$,2)
220 next pv
225 :
230 print#1: close1