FindFormula

FindFormula[data] finds a pure function that approximates data.

FindFormula[data,x] finds a symbolic function of the variable x that approximates data.

FindFormula[data,x,n] finds up to n functions that approximate data.

FindFormula[data,x,n,prop] returns up to n best functions associated with property prop.

FindFormula[data,x,n,{prop1,prop2,…}] returns up to n best functions associated with properties prop1, prop2, etc.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.