[Scilab-users] use of fsolve

[Carrico, Paul]

Dear All
A basic question : what is the correct synthax is order to call the
constants cst and R_ in the foo function ? do I need to use "global"
variable ?
Thanks
Paul
function [f, ind]=foo(x, cst, R_, ind)
    f(1) = (x(3) - cst(3))*(x(3) - x(1)) + (x(4) - cst(4))*(x(4) - x(2))
;
    f(2) = (x(1) - cst(1))*(x(3) - x(1)) + (x(2) - cst(2))*(x(4) - x(2))
;
    f(3) = (x(1) - cst(1))^2 + (x(2) - cst(2))^2 - R_(1)^2 ;
    f(4) = (x(3) - cst(3))^2 + (x(4) - cst(4))^2 - R_(2)^2 ;
endfunction

function [f, ind]=foo2(x, ind)
    cst = [106 ; 30 ; 54 ; 15]
    R_ = [9 ; 9]
    f(1) = (x(3) - cst(3))*(x(3) - x(1)) + (x(4) - cst(4))*(x(4) - x(2))
;
    f(2) = (x(1) - cst(1))*(x(3) - x(1)) + (x(2) - cst(2))*(x(4) - x(2))
;
    f(3) = (x(1) - cst(1))^2 + (x(2) - cst(2))^2 - R_(1)^2 ;
    f(4) = (x(3) - cst(3))^2 + (x(4) - cst(4))^2 - R_(2)^2 ;
endfunction

// constants
cst = [106 ; 30 ; 54 ; 15]
R_ = [9 ; 9]

x0 = cst
x1 = zeros(4,1)

// calculationusing fsolve
T1 = fsolve(x0,foo)
T2 = fsolve(x1,foo2)
 

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