View source for Futurebasic/language/reference/annuity

== FN Annuity# ==

=== Function ===
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=== Syntax ===
<pre>
annuityFactor# = fn annuity#( rate, periods )
</pre>

=== Description ===
Returns the annuity factor for the given interest rate and number of periods. The interest rate should be expressed as a fraction of 1; for example, 5.2 percent should be expressed as 0.052.


=== Notes ===
<code>fn annuity#</code> uses the following formula:<br /><br />
<math>annuityFactor\# = \frac {1-(1+rate) ^{periods}} {rate}</math>

=== See Also ===
<code>[[Futurebasic/language/reference/compound|compound]]</code>

[[Futurebasic/language/reference|Language Reference]]