There's octave on linux which is abit like matlab - only that it is free (but command line based - last time I used it - a while ago).
the last time i used such eqns was in my 2nd yr in campo where we did draw some curves using C++ and java in Numerical analysis and Scientific computing units.
Some of the areas or eqns were Runge Kutta,Newton Ralphson,Successive over relaxation n many others....like Eigen vectors and values calculations.....--
On Mon, Jun 1, 2009 at 11:40 AM, Njoroge Tito <titonjoroge@gmail.com> wrote:Last time i had such a problem, matlab was very very helpful and accurate.
On 31/05/2009, BOOKER OMOLE <bo7omole@hotmail.com> wrote:
>
> Simon just to be more specific, this are called electricity load curve, i
> intend to come up with a forecasting model that can predict short term power
> demand. The only way I know is to collect data per house unit, which i have
> done ,so i have time of the day on my x-axis and power in watts on my y
> axis. Then try come up with equations to describe this curves. That's where
> I'm stack.
>
>> Date: Sun, 31 May 2009 14:01:30 -0230
>> From: simonmuthike@gmail.com
>> To: skunkworks@lists.my.co.ke
>> Subject: Re: [Skunkworks] curve equations
>>
>> Please be specific . What will this equations be describing and what
>> factors are we to consider.
>>
>> On 5/31/09, nyarotho kennedy <kenyarotho@gmail.com> wrote:
>> > Its called Numerical Analysis -a unit in al engineering n science
>> > courses- if u have a set of data organized into an [x,y] state, it is
>> > possible to come up with equations that define the data char. using
>> > forward/backward difference tables. Its the only possible way i knw.
>> > For further details contact me offlist. All the best though n God
>> > bless u.
>> >
>> > On 5/31/09, BOOKER OMOLE <bo7omole@hotmail.com> wrote:
>> >>
>> >>
>> >> Skunks and skunkettes,
>> >>
>> >> I got sets of data, to be specific electrical energy consumption
>> >> against
>> >> time of the day for various residential units in Nairobi. I have so far
>> >> presented this in line graphs by use of Ms excel and its required of me
>> >> to
>> >> come with mathematical equations for this curves. Any suggestions?
>> >>
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