BUG: cast 'x' to correct dtype in KroghInterpolator._evaluate
BUG: cast 'x' to correct dtype in KroghInterpolator._evaluate

fixes #3669

kleskjr/scipy,rmcgibbo/scipy,argriffing/scipy,futurulus/scipy,andim/scipy,FRidh/scipy,sonnyhu/scipy,nmayorov/scipy,dch312/scipy,sriki18/scipy,vberaudi/scipy,Gillu13/scipy,mdhaber/scipy,anntzer/scipy,Srisai85/scipy,maciejkula/scipy,mingwpy/scipy,rmcgibbo/scipy,matthew-brett/scipy,jonycgn/scipy,lhilt/scipy,lhilt/scipy,ilayn/scipy,Newman101/scipy,larsmans/scipy,Gillu13/scipy,mtrbean/scipy,mgaitan/scipy,lukauskas/scipy,jor-/scipy,mortonjt/scipy,mingwpy/scipy,aarchiba/scipy,mortonjt/scipy,larsmans/scipy,Newman101/scipy,witcxc/scipy,gef756/scipy,piyush0609/scipy,Gillu13/scipy,kalvdans/scipy,behzadnouri/scipy,minhlongdo/scipy,pizzathief/scipy,mikebenfield/scipy,gdooper/scipy,richardotis/scipy,scipy/scipy,jakevdp/scipy,fredrikw/scipy,richardotis/scipy,gertingold/scipy,befelix/scipy,gertingold/scipy,Shaswat27/scipy,ndchorley/scipy,vhaasteren/scipy,mingwpy/scipy,zaxliu/scipy,kalvdans/scipy,sauliusl/scipy,Srisai85/scipy,befelix/scipy,pizzathief/scipy,jakevdp/scipy,aman-iitj/scipy,efiring/scipy,Eric89GXL/scipy,raoulbq/scipy,haudren/scipy,chatcannon/scipy,zxsted/scipy,futurulus/scipy,bkendzior/scipy,cpaulik/scipy,jsilter/scipy,jakevdp/scipy,sauliusl/scipy,ChanderG/scipy,pnedunuri/scipy,chatcannon/scipy,andyfaff/scipy,giorgiop/scipy,bkendzior/scipy,fredrikw/scipy,bkendzior/scipy,Newman101/scipy,trankmichael/scipy,ilayn/scipy,mdhaber/scipy,maciejkula/scipy,scipy/scipy,mingwpy/scipy,anntzer/scipy,maniteja123/scipy,nonhermitian/scipy,ChanderG/scipy,bkendzior/scipy,anntzer/scipy,lukauskas/scipy,mhogg/scipy,maciejkula/scipy,mtrbean/scipy,kalvdans/scipy,kleskjr/scipy,petebachant/scipy,mingwpy/scipy,Srisai85/scipy,surhudm/scipy,apbard/scipy,maniteja123/scipy,maciejkula/scipy,lukauskas/scipy,minhlongdo/scipy,fernand/scipy,mikebenfield/scipy,kleskjr/scipy,josephcslater/scipy,jjhelmus/scipy,endolith/scipy,gertingold/scipy,trankmichael/scipy,fernand/scipy,mortada/scipy,mortada/scipy,endolith/scipy,anielsen001/scipy,piyush0609/scipy,behzadnouri/scipy,mhogg/scipy,josephcslater/scipy,vigna/scipy,vberaudi/scipy,dch312/scipy,fredrikw/scipy,mingwpy/scipy,ndchorley/scipy,zerothi/scipy,sriki18/scipy,Eric89GXL/scipy,WillieMaddox/scipy,mdhaber/scipy,aman-iitj/scipy,pnedunuri/scipy,arokem/scipy,richardotis/scipy,andyfaff/scipy,zxsted/scipy,mgaitan/scipy,befelix/scipy,pizzathief/scipy,woodscn/scipy,nvoron23/scipy,nonhermitian/scipy,trankmichael/scipy,pschella/scipy,piyush0609/scipy,jonycgn/scipy,Eric89GXL/scipy,person142/scipy,raoulbq/scipy,jseabold/scipy,dominicelse/scipy,gef756/scipy,aeklant/scipy,vanpact/scipy,vanpact/scipy,gdooper/scipy,haudren/scipy,vigna/scipy,gdooper/scipy,endolith/scipy,e-q/scipy,larsmans/scipy,Shaswat27/scipy,befelix/scipy,Eric89GXL/scipy,efiring/scipy,anntzer/scipy,gef756/scipy,mortada/scipy,Dapid/scipy,giorgiop/scipy,zxsted/scipy,zxsted/scipy,pnedunuri/scipy,endolith/scipy,mtrbean/scipy,anielsen001/scipy,Newman101/scipy,jsilter/scipy,felipebetancur/scipy,hainm/scipy,matthew-brett/scipy,perimosocordiae/scipy,nmayorov/scipy,WarrenWeckesser/scipy,WillieMaddox/scipy,ortylp/scipy,maniteja123/scipy,pyramania/scipy,surhudm/scipy,josephcslater/scipy,jonycgn/scipy,nonhermitian/scipy,fernand/scipy,woodscn/scipy,njwilson23/scipy,apbard/scipy,Kamp9/scipy,pizzathief/scipy,endolith/scipy,vhaasteren/scipy,nonhermitian/scipy,vigna/scipy,jonycgn/scipy,ales-erjavec/scipy,chatcannon/scipy,sonnyhu/scipy,sonnyhu/scipy,maniteja123/scipy,futurulus/scipy,Kamp9/scipy,ortylp/scipy,fernand/scipy,mhogg/scipy,ales-erjavec/scipy,mortada/scipy,ortylp/scipy,larsmans/scipy,Shaswat27/scipy,Dapid/scipy,behzadnouri/scipy,WarrenWeckesser/scipy,andyfaff/scipy,niknow/scipy,jsilter/scipy,rgommers/scipy,gfyoung/scipy,niknow/scipy,Gillu13/scipy,zerothi/scipy,zerothi/scipy,jamestwebber/scipy,mtrbean/scipy,sauliusl/scipy,perimosocordiae/scipy,surhudm/scipy,felipebetancur/scipy,hainm/scipy,Stefan-Endres/scipy,mgaitan/scipy,nmayorov/scipy,Eric89GXL/scipy,aman-iitj/scipy,gdooper/scipy,cpaulik/scipy,cpaulik/scipy,andim/scipy,aeklant/scipy,chatcannon/scipy,newemailjdm/scipy,befelix/scipy,pbrod/scipy,sriki18/scipy,njwilson23/scipy,Shaswat27/scipy,Srisai85/scipy,arokem/scipy,vigna/scipy,nvoron23/scipy,pnedunuri/scipy,lhilt/scipy,mdhaber/scipy,gertingold/scipy,raoulbq/scipy,pizzathief/scipy,jamestwebber/scipy,ales-erjavec/scipy,newemailjdm/scipy,vberaudi/scipy,gdooper/scipy,fredrikw/scipy,andyfaff/scipy,gfyoung/scipy,perimosocordiae/scipy,woodscn/scipy,FRidh/scipy,jor-/scipy,niknow/scipy,ndchorley/scipy,chatcannon/scipy,niknow/scipy,vberaudi/scipy,jor-/scipy,jseabold/scipy,Gillu13/scipy,cpaulik/scipy,person142/scipy,WillieMaddox/scipy,grlee77/scipy,richardotis/scipy,tylerjereddy/scipy,apbard/scipy,sauliusl/scipy,piyush0609/scipy,tylerjereddy/scipy,sauliusl/scipy,piyush0609/scipy,ilayn/scipy,pbrod/scipy,aarchiba/scipy,larsmans/scipy,zaxliu/scipy,pnedunuri/scipy,WarrenWeckesser/scipy,person142/scipy,fernand/scipy,petebachant/scipy,Kamp9/scipy,jsilter/scipy,mortada/scipy,rgommers/scipy,argriffing/scipy,giorgiop/scipy,haudren/scipy,tylerjereddy/scipy,rgommers/scipy,vanpact/scipy,ChanderG/scipy,vanpact/scipy,mhogg/scipy,njwilson23/scipy,haudren/scipy,sauliusl/scipy,gef756/scipy,andyfaff/scipy,trankmichael/scipy,njwilson23/scipy,nmayorov/scipy,jseabold/scipy,jor-/scipy,lukauskas/scipy,efiring/scipy,sonnyhu/scipy,mikebenfield/scipy,rmcgibbo/scipy,newemailjdm/scipy,giorgiop/scipy,perimosocordiae/scipy,rgommers/scipy,pbrod/scipy,zxsted/scipy,gfyoung/scipy,petebachant/scipy,argriffing/scipy,dch312/scipy,minhlongdo/scipy,Stefan-Endres/scipy,njwilson23/scipy,hainm/scipy,jonycgn/scipy,jseabold/scipy,minhlongdo/scipy,Stefan-Endres/scipy,Newman101/scipy,maciejkula/scipy,woodscn/scipy,grlee77/scipy,Dapid/scipy,mortada/scipy,futurulus/scipy,aarchiba/scipy,pbrod/scipy,aman-iitj/scipy,newemailjdm/scipy,mikebenfield/scipy,andim/scipy,maniteja123/scipy,kalvdans/scipy,arokem/scipy,grlee77/scipy,pschella/scipy,jjhelmus/scipy,dominicelse/scipy,ales-erjavec/scipy,nvoron23/scipy,WarrenWeckesser/scipy,person142/scipy,apbard/scipy,witcxc/scipy,dominicelse/scipy,surhudm/scipy,njwilson23/scipy,pschella/scipy,matthew-brett/scipy,niknow/scipy,raoulbq/scipy,nonhermitian/scipy,futurulus/scipy,Kamp9/scipy,ortylp/scipy,Kamp9/scipy,mhogg/scipy,Stefan-Endres/scipy,matthewalbani/scipy,richardotis/scipy,argriffing/scipy,jamestwebber/scipy,argriffing/scipy,e-q/scipy,ndchorley/scipy,rmcgibbo/scipy,sriki18/scipy,andim/scipy,mtrbean/scipy,andim/scipy,mortonjt/scipy,ilayn/scipy,Dapid/scipy,vigna/scipy,scipy/scipy,petebachant/scipy,Dapid/scipy,behzadnouri/scipy,mgaitan/scipy,ilayn/scipy,Newman101/scipy,Gillu13/scipy,cpaulik/scipy,niknow/scipy,andyfaff/scipy,aarchiba/scipy,mgaitan/scipy,gfyoung/scipy,josephcslater/scipy,arokem/scipy,vberaudi/scipy,endolith/scipy,ChanderG/scipy,tylerjereddy/scipy,jjhelmus/scipy,zerothi/scipy,trankmichael/scipy,jjhelmus/scipy,pbrod/scipy,aarchiba/scipy,argriffing/scipy,FRidh/scipy,Eric89GXL/scipy,behzadnouri/scipy,ales-erjavec/scipy,lhilt/scipy,lukauskas/scipy,Stefan-Endres/scipy,jseabold/scipy,pyramania/scipy,fernand/scipy,scipy/scipy,dominicelse/scipy,matthewalbani/scipy,perimosocordiae/scipy,grlee77/scipy,matthewalbani/scipy,petebachant/scipy,vanpact/scipy,mikebenfield/scipy,fredrikw/scipy,dominicelse/scipy,mhogg/scipy,kleskjr/scipy,ChanderG/scipy,perimosocordiae/scipy,zerothi/scipy,aeklant/scipy,gertingold/scipy,jjhelmus/scipy,anielsen001/scipy,raoulbq/scipy,witcxc/scipy,haudren/scipy,hainm/scipy,Srisai85/scipy,matthewalbani/scipy,chatcannon/scipy,zaxliu/scipy,sonnyhu/scipy,mtrbean/scipy,minhlongdo/scipy,matthewalbani/scipy,person142/scipy,mortonjt/scipy,minhlongdo/scipy,Srisai85/scipy,dch312/scipy,newemailjdm/scipy,Dapid/scipy,felipebetancur/scipy,kalvdans/scipy,jsilter/scipy,trankmichael/scipy,felipebetancur/scipy,piyush0609/scipy,arokem/scipy,sonnyhu/scipy,WarrenWeckesser/scipy,zaxliu/scipy,haudren/scipy,larsmans/scipy,FRidh/scipy,lukauskas/scipy,surhudm/scipy,anntzer/scipy,matthew-brett/scipy,nvoron23/scipy,pyramania/scipy,mdhaber/scipy,witcxc/scipy,WarrenWeckesser/scipy,ales-erjavec/scipy,mortonjt/scipy,ilayn/scipy,ortylp/scipy,felipebetancur/scipy,zaxliu/scipy,pyramania/scipy,vhaasteren/scipy,petebachant/scipy,mgaitan/scipy,nvoron23/scipy,e-q/scipy,gef756/scipy,fredrikw/scipy,jamestwebber/scipy,anielsen001/scipy,gef756/scipy,jakevdp/scipy,newemailjdm/scipy,aman-iitj/scipy,zxsted/scipy,pschella/scipy,gfyoung/scipy,aeklant/scipy,felipebetancur/scipy,nmayorov/scipy,jseabold/scipy,anntzer/scipy,jonycgn/scipy,rmcgibbo/scipy,WillieMaddox/scipy,kleskjr/scipy,hainm/scipy,futurulus/scipy,lhilt/scipy,mdhaber/scipy,Shaswat27/scipy,rgommers/scipy,vhaasteren/scipy,rmcgibbo/scipy,jakevdp/scipy,efiring/scipy,FRidh/scipy,hainm/scipy,dch312/scipy,matthew-brett/scipy,Stefan-Endres/scipy,sriki18/scipy,josephcslater/scipy,giorgiop/scipy,ndchorley/scipy,witcxc/scipy,pnedunuri/scipy,vanpact/scipy,aeklant/scipy,jamestwebber/scipy,pyramania/scipy,grlee77/scipy,efiring/scipy,aman-iitj/scipy,kleskjr/scipy,pbrod/scipy,zaxliu/scipy,maniteja123/scipy,Kamp9/scipy,e-q/scipy,WillieMaddox/scipy,WillieMaddox/scipy,zerothi/scipy,behzadnouri/scipy,ortylp/scipy,bkendzior/scipy,scipy/scipy,vhaasteren/scipy,Shaswat27/scipy,raoulbq/scipy,sriki18/scipy,vberaudi/scipy,pschella/scipy,apbard/scipy,ndchorley/scipy,andim/scipy,richardotis/scipy,vhaasteren/scipy,ChanderG/scipy,e-q/scipy,nvoron23/scipy,surhudm/scipy,woodscn/scipy,cpaulik/scipy,anielsen001/scipy,jor-/scipy,giorgiop/scipy,anielsen001/scipy,FRidh/scipy,woodscn/scipy,scipy/scipy,tylerjereddy/scipy,mortonjt/scipy,efiring/scipy