終価 = (1+r)^n =🪙
現価 = 1 / (1+r)^n = 1 /🪙
年金終価 = ((1+r)^n -1) / r = 🪙-1 / r
減債基金 = r / ((1+r)^n -1) = ⇅
資本回収 = (r(1+r)^n) / ((1+r)^n -1) = ⇅
年金現価 = ((1+r)^n -1) / (r(1+r)^n) = 🪙-1 / r🪙
終価 = (1+r)^n =🪙
現価 = 1 / (1+r)^n = 1 /🪙
年金終価 = ((1+r)^n -1) / r = 🪙-1 / r
減債基金 = r / ((1+r)^n -1) = ⇅
資本回収 = (r(1+r)^n) / ((1+r)^n -1) = ⇅
年金現価 = ((1+r)^n -1) / (r(1+r)^n) = 🪙-1 / r🪙
