If strep bacteria causes the infection, it can remain contagious for up to 2 weeks without treatment. However, antibiotics can shorten the contagious period and li â¦ mits to about 24 to 48 hours once the therapy starts.     http://health.top54u.com/post/How-Long-is-Tonsillitis-Contagious.aspx.
Calculate Options Implied Volatility in Excel. Implied Volatility Function: Returns the annualized volatility of an underlying security implied by the market price of a European call or put option on that security, based on Black-Scholes valuation. Description of parameters.
Nesting the ROUND and SUM Functions Overview. Nesting functions in Excel refers to combining the operations of two or more functions in a single formula. To accomplish this, one function is placed inside another function. In the image above, the Excel's SUM function is nested inside the ROUND function. When used individually, each function is used to accomplish the following: 1  The SUM function adds up columns or rows of numbers in a worksheet.