??? Undefined function or method 'gt' for input arguments of type 'sym'.
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From: M Paheerathan on 14 Jul 2010 01:20 a = solve('-4.4159e-005*x^2+-0.00065039*x+0.0008699=0') Output is passed to the following function min=-10 max=10 values = a function inrangeValue = checkRange(min, max,values) for i=1:length(values) if (values(i)>min) && (values(i)<max) inrangeValue=values(i); end end I'm getting a error: ??? Undefined function or method 'gt' for input arguments of type 'sym'. What is the reason for this?
From: Steven Lord on 14 Jul 2010 10:22
"M Paheerathan" <mp.mscproject(a)yahoo.com> wrote in message news:i1jhel$gso$1(a)fred.mathworks.com... >a = solve('-4.4159e-005*x^2+-0.00065039*x+0.0008699=0') > Output is passed to the following function > min=-10 > max=10 > values = a > > function inrangeValue = checkRange(min, max,values) > for i=1:length(values) > if (values(i)>min) && (values(i)<max) > inrangeValue=values(i); end > end > > > I'm getting a error: ??? Undefined function or method 'gt' for input > arguments of type 'sym'. > > What is the reason for this? Because the greater-than operator (>) is not defined for sym objects and GT is the name of the function form of that operator. [If x and y were arbitrary symbolic variables, what should x > y return if > were defined for sym objects?] -- Steve Lord slord(a)mathworks.com comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ To contact Technical Support use the Contact Us link on http://www.mathworks.com |