undefined function - built in function, on the path, not found by matlab - Might this be a JAVA problem?

>> t=[0:.1:10]; >> w=2*pi; >> Psine=spline(t,sin(w*t)) Undefined function 'chckxy' for input arguments of type 'double'.

Error in spline (line 54) [x,y,sizey,endslopes] = chckxy(x,y);

>> path

MATLABPATH

C:\Users\Dan Isaacson\Documents\MATLAB C:\Program Files\MATLAB\R2014b\toolbox\matlab\testframework C:\Program Files\MATLAB\R2014b\toolbox\matlab\demos C:\Program Files\MATLAB\R2014b\toolbox\matlab\graph2d C:\Program Files\MATLAB\R2014b\toolbox\matlab\graph3d C:\Program Files\MATLAB\R2014b\toolbox\matlab\graphics C:\Program Files\MATLAB\R2014b\toolbox\matlab\graphics\obsolete C:\Program Files\MATLAB\R2014b\toolbox\matlab\plottools C:\Program Files\MATLAB\R2014b\toolbox\matlab\scribe C:\Program Files\MATLAB\R2014b\toolbox\matlab\scribe\obsolete C:\Program Files\MATLAB\R2014b\toolbox\matlab\specgraph C:\Program Files\MATLAB\R2014b\toolbox\matlab\uitools C:\Program Files\MATLAB\R2014b\toolbox\matlab\uitools\obsolete C:\Program Files\MATLAB\R2014b\toolbox\matlab\hardware\stubs C:\Program Files\MATLAB\R2014b\toolbox\matlab\images C:\Program Files\MATLAB\R2014b\toolbox\local C:\Program Files\MATLAB\R2014b\toolbox\matlab\optimfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\codetools C:\Program Files\MATLAB\R2014b\toolbox\matlab\datafun C:\Program Files\MATLAB\R2014b\toolbox\matlab\datamanager C:\Program Files\MATLAB\R2014b\toolbox\matlab\datastoreio C:\Program Files\MATLAB\R2014b\toolbox\matlab\datatypes C:\Program Files\MATLAB\R2014b\toolbox\matlab\depfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\elfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\elmat C:\Program Files\MATLAB\R2014b\toolbox\matlab\funfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\general C:\Program Files\MATLAB\R2014b\toolbox\matlab\guide C:\Program Files\MATLAB\R2014b\toolbox\matlab\helptools C:\Program Files\MATLAB\R2014b\toolbox\matlab\icons C:\Program Files\MATLAB\R2014b\toolbox\matlab\iofun C:\Program Files\MATLAB\R2014b\toolbox\matlab\lang C:\Program Files\MATLAB\R2014b\toolbox\matlab\mapreduceio C:\Program Files\MATLAB\R2014b\toolbox\matlab\matfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\ops C:\Program Files\MATLAB\R2014b\toolbox\matlab\polyfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\randfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\sparfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\specfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\strfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\timefun C:\Program Files\MATLAB\R2014b\toolbox\matlab\verctrl C:\Program Files\MATLAB\R2014b\toolbox\matlab\winfun C:\Program Files\MATLAB\R2014b\toolbox\matlab\winfun\NET C:\Program Files\MATLAB\R2014b\toolbox\simulink\components C:\Program Files\MATLAB\R2014b\toolbox\simulink\dee C:\Program Files\MATLAB\R2014b\toolbox\rtw\targets\AUTOSAR\AUTOSAR\dataclasses C:\Program Files\MATLAB\R2014b\toolbox\rtw\targets\AUTOSAR\AUTOSAR C:\Program Files\MATLAB\R2014b\toolbox\rtw\accel C:\Program Files\MATLAB\R2014b\toolbox\coder\simulinkcoder_core C:\Program Files\MATLAB\R2014b\toolbox\simulink\blocks\library C:\Program Files\MATLAB\R2014b\toolbox\simulink\blocks\library\simulinkcoder C:\Program Files\MATLAB\R2014b\toolbox\simulink\blocks\obsolete C:\Program Files\MATLAB\R2014b\toolbox\simulink\blocks C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\dataclasses C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\MPlayIO C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\dataobjectwizard C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\slresolve C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\core_templates C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\dataclasses C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\aerospace C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\automotive C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\automotive\powerwindow C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\simfeatures C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\simfeatures\modelreference C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\automotive\fuelsys C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\simgeneral C:\Program Files\MATLAB\R2014b\toolbox\simulink\simdemos\industrial C:\Program Files\MATLAB\R2014b\toolbox\simulink\hmi C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\modeladvisor C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\modeladvisor\fixpt C:\Program Files\MATLAB\R2014b\toolbox\simulink\sdi C:\Program Files\MATLAB\R2014b\toolbox\simulink\sysarch\sysarch C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\frameedit C:\Program Files\MATLAB\R2014b\toolbox\shared\dastudio\depviewer C:\Program Files\MATLAB\R2014b\toolbox\stateflow\stateflow C:\Program Files\MATLAB\R2014b\toolbox\stateflow\coder C:\Program Files\MATLAB\R2014b\toolbox\stateflow\sfdemos C:\Program Files\MATLAB\R2014b\toolbox\matlab\apps C:\Program Files\MATLAB\R2014b\toolbox\matlab\audiovideo C:\Program Files\MATLAB\R2014b\toolbox\matlab\cefclient C:\Program 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Files\MATLAB\R2014b\toolbox\fixpoint C:\Program Files\MATLAB\R2014b\toolbox\fixpoint\fpca C:\Program Files\MATLAB\R2014b\toolbox\simulink\fixedandfloat\fxpdemos C:\Program Files\MATLAB\R2014b\toolbox\shared\glue C:\Program Files\MATLAB\R2014b\toolbox\shared\glue\studio C:\Program Files\MATLAB\R2014b\toolbox\hdlcoder\hdllib\ml_lib C:\Program Files\MATLAB\R2014b\toolbox\hdlcoder\hdllib\sl_lib C:\Program Files\MATLAB\R2014b\toolbox\matlab\supportpackagemanagement C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\autointerface C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\autointerface\ideregisterplugins C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\util C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\errorhandler C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\xmakefile C:\Program Files\MATLAB\R2014b\toolbox\idelink\foundation\hookpoints C:\Program 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Files\MATLAB\R2014b\toolbox\shared\networklib C:\Program Files\MATLAB\R2014b\toolbox\shared\optimlib C:\Program Files\MATLAB\R2014b\toolbox\shared\reqmgt C:\Program Files\MATLAB\R2014b\toolbox\slvnv\reqmgt C:\Program Files\MATLAB\R2014b\toolbox\slvnv\reqmgt\RTExplorer C:\Program Files\MATLAB\R2014b\toolbox\shared\rptgen C:\Program Files\MATLAB\R2014b\toolbox\shared\sdi C:\Program Files\MATLAB\R2014b\toolbox\shared\sigbldr C:\Program Files\MATLAB\R2014b\toolbox\shared\siglib C:\Program Files\MATLAB\R2014b\toolbox\shared\slcontrollib C:\Program Files\MATLAB\R2014b\toolbox\shared\sldv C:\Program Files\MATLAB\R2014b\toolbox\shared\slvnv C:\Program Files\MATLAB\R2014b\toolbox\slvnv\simcoverage C:\Program Files\MATLAB\R2014b\toolbox\shared\sl_async_streaming C:\Program Files\MATLAB\R2014b\toolbox\shared\sl_web_widgets C:\Program Files\MATLAB\R2014b\toolbox\shared\spcuilib C:\Program Files\MATLAB\R2014b\toolbox\shared\statslib C:\Program Files\MATLAB\R2014b\toolbox\shared\statslib\sensitivity C:\Program Files\MATLAB\R2014b\toolbox\shared\system\coder C:\Program Files\MATLAB\R2014b\toolbox\shared\system\coreblocks C:\Program Files\MATLAB\R2014b\toolbox\shared\system\sfun C:\Program Files\MATLAB\R2014b\toolbox\shared\system\simulink C:\Program Files\MATLAB\R2014b\toolbox\shared\testmeaslib\general C:\Program Files\MATLAB\R2014b\toolbox\shared\testmeaslib\graphics C:\Program Files\MATLAB\R2014b\toolbox\signal\signal C:\Program Files\MATLAB\R2014b\toolbox\signal\sigtools C:\Program Files\MATLAB\R2014b\toolbox\signal\sptoolgui C:\Program Files\MATLAB\R2014b\toolbox\signal\sigdemos C:\Program Files\MATLAB\R2014b\toolbox\shared\simulink C:\Program Files\MATLAB\R2014b\toolbox\shared\simulation_data_repository C:\Program Files\MATLAB\R2014b\toolbox\sl3d\sl3d C:\Program Files\MATLAB\R2014b\toolbox\sl3d\sl3ddemos C:\Program Files\MATLAB\R2014b\toolbox\sldv\sldv C:\Program Files\MATLAB\R2014b\toolbox\simulink\simulink\slproject C:\Program 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Files\MATLAB\R2014b\toolbox\stats\clustering C:\Program Files\MATLAB\R2014b\toolbox\stats\statsdemos C:\Program Files\MATLAB\R2014b\toolbox\matlab\system C:\Program Files\MATLAB\R2014b\toolbox\matlab\timeseries C:\Program Files\MATLAB\R2014b\toolbox\matlab\hds C:\Program Files\MATLAB\R2014b\toolbox\matlab\toolboxmanagement C:\Program Files\MATLAB\R2014b\toolbox\matlab\toolbox_packaging C:\Program Files\MATLAB\R2014b\toolbox\matlab\toolstrip C:\Program Files\MATLAB\R2014b\toolbox\matlab\webcam C:\Program Files\MATLAB\R2014b\toolbox\matlab\external\interfaces\webservices\restful C:\Program Files\MATLAB\R2014b\toolbox\matlab\external\interfaces C:\Program Files\MATLAB\R2014b\toolbox\matlab\external\interfaces\webservices C:\Program Files\MATLAB\R2014b\toolbox\matlab\external\interfaces\webservices\wsdl >> ver ---------------------------------------------------------------------------------------------------- MATLAB Version: 8.4.0.150421 (R2014b) MATLAB License Number: 670073 Operating System: Microsoft Windows 7 Ultimate Version 6.1 (Build 7601: Service Pack 1) Java Version: Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot™ 64-Bit Server VM mixed mode ---------------------------------------------------------------------------------------------------- MATLAB Version 8.4 (R2014b) Simulink Version 8.4 (R2014b) Control System Toolbox Version 9.8 (R2014b) Signal Processing Toolbox Version 6.22 (R2014b) Statistics Toolbox Version 9.1 (R2014b) System Identification Toolbox Version 9.1 (R2014b) >>

[Geoff Hayes]

Daniel - in the Command Window type

 which chckxy -all

to determine where the file is located. When I try this, I observe the following

 /Applications/MATLAB_R2014a.app/toolbox/matlab/polyfun/private/chckxy.m  % Private to polyfun