spacos() 
     spasin() 
     spatan() 
     spcos() 
     spcosh() 
     spexp() 
     spfieee() 
     splog() 
     splog10() 
     sppow() 
     spsin() 
     spsincos() 
     spsinh() 
     spsqrt() 
     sptan() 
     sptanh() 
     sptieee()