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Re: Multiple parameters for ZEROFCN [message #78985 is a reply to message #78899]

Sun, 15 January 2012 07:57

wlandsman
Messages: 743
Registered: June 2000

Senior Member

I give an example of using common blocks to pass parameters below. Since IDL does not have the PV_WAVE ZEROFCN function, I substituted ZBRENT just to have a function that works for me.

Note that another limitation of the built-in IMSL/Numerical Recipes functions in IDL is that the user-supplied function must return a *scalar* value. So be careful that your extra Y parameter is also a scalar. --Wayne

FUNCTION f, x
common fparam, y
RETURN, X^3 + y
END

pro test
common fparam,y

FOR i = 0, 9 DO BEGIN
Y = i
print, Zbrent(-5,5,func_name="F")
ENDFOR
END

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		Multiple parameters for ZEROFCN By: Rick Walton on Mon, 02 January 2012 14:41
		Re: Multiple parameters for ZEROFCN By: wlandsman on Sun, 15 January 2012 07:57

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