User-Supplied Plain Text Function Formats

Rave can load simple "plain text" functions that meet the following criteria:

• The function calculates a single output variable. It may have any number of input variables.
• The function involves only basic math operators: + - * / ^ abs(), sin(), cos(), log() etc...
• The function can theoretically be represented as a single statement (line) of MATLAB code. I.e. it cannot involve "if" statements, "for" loops etc.
• The names of all input variables are legal matlab variable names. This generally means they must begin with a letter and cannot contain symbols (other than _) or spaces.

Rave can load plain text functions either from a .txt file, or you can type/paste them into a dialog box. In either case, the content of the function should be only the right hand side of the equals sign. For example, if you have the function y = x1 + x2, you would use only "x1+x2" as the content of the function. You will supply the name of the output variable when you load the function into Rave.

• Tip: If you are loading a function stored in a .txt file, Rave will suggest the file name as the default variable name. So you can save time by using the functional variable's names as your file names.

• Developer tip: The function that Rave uses to convert plain text files to .m files is named ravetxt2m.m

Examples: A simple function may look like:

x1 + cos(x2) * abs(x1/x2) - exp(x) + x^2

A more complicated function could be:

exp(11.6703935+Thrust*-0.0000326600101+FPR*-1.41803275+LPCPR*0.00415193051+OPR*-0.0029531291+T4max*-0.000195797154+Vratio*-1.92648403+Loading*0.360255868+Payload*0.0000284530331+Range2*0.000163181712+Thrust*Thrust*0.000000000606111453+FPR*Thrust*-0.00000438394509+FPR*FPR.*0.508561336+LPCPR*Thrust*-0.000000658367223+LPCPR*FPR*-0.0092802591+LPCPR*LPCPR*0.0160130278+OPR*Thrust*0.00000000140482047+OPR*FPR.*0.000770681078+OPR*LPCPR*0.0000346999344+OPR*OPR*0.0000202874834+T4max*Thrust*-0.00000000212251231+T4max*FPR*-0.0000692665696+T4max*LPCPR*0.000036486005+T4max*OPR*-0.00000109566933+T4max*T4max*0.0000000544769111+Vratio*Thrust*-0.000000980437888+Vratio*FPR*-0.0132480486+Vratio*LPCPR*-0.0825760778+Vratio*OPR.*0.00185308179+Vratio*T4max*-0.0000103482963+Vratio*Vratio*0.570256604+Loading*Thrust*0.000000941943684+Loading*FPR*-0.0350705609+Loading*LPCPR*-0.0595044256+Loading*OPR*0.00249845651+Loading*T4max*-0.0000518362764+Loading*Vratio*-0.00857311658+Loading*Loading*-0.0755155667+Payload*Thrust*-0.000000000179474291+Payload*FPR*-0.00000118332246+Payload*LPCPR*-0.000000114138247+Payload*OPR*-0.00000000578049718+Payload*T4max*0.000000000171659028+Payload*Vratio*0.000000279097022+Payload*Loading*-0.000000166412116+Payload*Payload*-0.0000000000599337645+Range2*Thrust*-0.000000000837792856+Range2*FPR*0.0000218442552+Range2*LPCPR*-0.000000383165627+Range2*OPR*-0.000000264719975+Range2*T4max*-0.0000000167869449+Range2*Vratio*0.0000190871404+Range2*Loading*0.000000714906327+Range2*Payload*-0.000000000182036483+Range2*Range2*-0.000000000321241661)