User manual

UniversitàdegliStudidiCatania
IntroductiontoNILabVIEW
 LabVIEWG‐Language:Formula&ExpressionNodes
The Formula Node is a resizable box that you use to enter algebraic formulas directly into the
block diagram. You will find this feature extremely useful when you have a long formula to solve. For
example, consider the fairly simple equation, y = x
2
+ x + 1. Even for this simple formula, if you
implement this equation using regular LabVIEW arithmetic functions, the block diagram is a little bit
harder to follow than the text equations
The Expression Node is basically just a simplified Formula Node having just one unnamed
input and one unnamed output. You do not have to name the input or output terminals and to put
semicolons at the end.
ThesameoperatorsandsyntaxoftheFormulaNodeapplytotheExpressionNode.