Similar to the Formula Node but with variables that can be entered on the front panel. Refer to Formula Parsing VIs in More Detail for more information on the differences between the Eval Formula Node VI and the Formula Node.


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Inputs/Outputs

  • c1ddbl.png Input Values —

    Input Values is an array of numbers with a one-to-one relation to Variables Input.

  • c1dstr.png Variables Input —

    Variables Input is an array of input strings, each of which represents a valid variable name.

  • c1dstr.png Variables Output —

    Variables Output is an array of output strings, each of which represents a valid variable name.

  • cstr.png formula —

    formula is a string consisting of one or more formulas separated by semicolons. Each formula is built up by Variables Input on the right side of an equation and Variables Output on the left side. The formulas can contain any number of valid variables.

  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • i1ddbl.png Output Values —

    Output Values is a 1D array of numbers corresponding to Variables Output and formula. The numbers in Output Values represent the results.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.

    • The following inputs:

    • formula: y = 3*x + 4*z; p = q^2 - 5;
    • Variables Input: [x, z, q]
    • Input Values: [1,2,3]
    • Variables Output: [y, p]

    result in Output Values [11.00, 4.00].