For adults, a normal resting rate is 60 to 100 beats per minute. Athletes may have a rate as low as 40 bpm because their hearts are trained to efficiently pump blood. If your heart rate is consistently below 60 or above 100, you may have a heart condition, such as arrhythmia.
Integrating Factor. An integrating factor is a function by which an ordinary differential equation can be multiplied in order to make it integrable. For example, a linear first-order ordinary differential equation of type.
What is a 'Factor'. A factor is a financial intermediary that purchases receivables from a company. A factor is essentially a funding source that agrees to pay the company the value of the invoice less a discount for commission and fees. The factor advances most of the invoiced amount to the company immediately and the balance upon receipt of funds from the invoiced party.