OT Math rant, was Re: [sdiy] DSP book recommendation wanted

[Jon Philpott]

On Fri, Sep 25, 2009 at 12:44 PM, Neil Johnson
<neil.johnson97 at ntlworld.com> wrote:
> Hi,
>
> Tom Wiltshire wrote:
>>
>> One example; I've been baffled for a long time by the e^jų stuff that I
>> keep seeing in filter theory and whathaveyou.
>
> Oh, you mean r cis theta - did that at secondary school in A levels but that
> was before they dumbed it down for GCSEs.

This is entirely true, I did my GCSEs in 1999, and was I wasn't taught
any of this. The most advance maths we did at GCSE level was quadratic
equations. Complex numbers? What's that? :)