MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur télécharger pdf (Page 168)

4 Programming

The graph

shows that the function has a local minimum near x =0.6. The

function

fminsearch finds the minimizer,thevalueofx where the function

takes on t

his minimum. The first argument to

fminsearch is a function

handle to

the function being minimized and the second argument is a rough

guess at

the location of the minimum:

p = fminsearch(@humps ,.5)

0.6370

To evaluate the function at the minimizer,

humps(p)

ans =

11.2528

Numerical analysts use the terms quadrature and integration to disti nguish

between num erical approx imatio n of definite integrals and numerical

integration of ordinary differential equations. MATLAB quadrature routines

are

quad and quadl.Thestatement

4-30

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MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur Page 168