solving equation system

[Brigitte Diekhaus]

hello,

it`s my first time using octave and I want to solve the following equation
system:

29.3 = A*124.5^4+B*124.5^3+C*124.5^2+124.5*D+F,
126.7 = A*111^4+B*111^3+C*111^2+D*111+F,
236.4 = A*88.9^4+B*88.9^3+C*88.9^2+D*88.9+F,
284.7 = A*75.5^4+B*75.5^3+C*75.5^2+D*75.5+F,
315.5 = A*63^4+B*63^3+C*63^2+D*63+F },

I need to find the variables {A,B,C,D,F}

to get a function like this:

y(x)=a*x^4+b*x^3+c*x^2+d*x+e

I Don`t know the syntax I have to use with octave to solve this equation
system.

many thanks in advance.

Brigitte



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