d interest
rate, <var>num</var> is the number of periods and must be
postivive and <var>flow</var> refers to cash flow so if you
have an Output the flow is negative and positive
for Inputs.
</p>
<p>Note that before using the functions defined in this 
package, you have to load it writing <code>load(finance)$</code>.
</p>
<p>Author: Nicolas Guarin Zapata.
</p>
<hr size="6">
<a name="Functions-and-Variables-for-finance"></a>
<a name="SEC279"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td vali