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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: COBOL, Article on new mainframe use
Date: Tue, 20 Aug 2024 23:27:34 -0000 (UTC)
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On Tue, 20 Aug 2024 11:51:14 -0400, EricP wrote:

> John Levine wrote:
>>
>> According to Lawrence D'Oliveiro  <ldo@nz.invalid>:
>> 
>>> Oh, and compound interest requires working with transcendental
>>> functions, doesn’t it?
>> 
>> Uh, no, it's just repeated multiplication.
> 
> For some simple bonds, parts of the price or yield calculations are
> integer power series so one could roll your own integer power function
> optimized to do the minimum number of multiplies.
> 
>    x^17 = ((((x^2)^2)^2)^2)*x
> 

I’d really like to see how you’d write that in COBOL ...