Rest (music) Rest (music) A rest is an interval of silence in a piece of music, marked by a symbol indicating the length of the pause. Each rest symbol and name corresponds with a particular note value for length, indicating how long the silence should last. Rests are intervals of silence in pieces of music, marked by symbols indicating the length of the pause. Each rest symbol and name corresponds with a particular note value, indicating how long the silence should last, generally as a multiplier of a measure or whole note. When an entire bar is devoid of notes, a whole
Time value of money is to emphasize that "u" is a "parameter" (fixed in any instance—the time when the cash flow will occur), while "t" is a "variable" (time). In other words, future cash flows are exponentially discounted (exp) by the sum (integral, formula_44) of the future discount rates (formula_45 for future, "r"("v") for discount rates), while past cash flows are worth 0 (formula_46), because they have already occurred. Note that the value "at" the moment of a cash flow is not well-defined – there is a discontinuity at that point, and one can use a convention (assume cash flows have already occurred, or