Eval Multi-Variable Array VI

Owning Palette: 1D & 2D Evaluation VIs

Requires: Full Development System

Calculates the function values of a given function at an arbitrarily given set of n dimension points.

Details  

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	formula is a string representing the n dimension function under investigation. The formula can contain any number of valid variables.
	X Values is a 2D array of x values. Each row of the array represents the fixed values of each of the Variables of the n-dimensional function. The other dimension of the array marks the different n-dimension points at which the function has to be calculated.
	Variables is an array of strings. Each element of the array stands for a variable name of the n-dimension independent terms.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Y Values is the 1D array of the evaluated values Y[i] using formula(X Values). Each element of Y Values corresponds to the corresponding column of X Values.
	error out contains error information. This output provides standard error out functionality.

Eval Multi-Variable Array Details

The VI calculates the function values using the following equation.

y_i = f(x_1i, x_2i, …, x_ni),

where f is an n-dimensional function given by the formula, and (x₁, x₂, …, x_n) are n independent variables.

The following inputs result in Y Values [3, 17]:

• formula: 3*x1 + 4*x2 + x3^2
• X Values: [1, 0; -1, 4; 2, 1] ([1, -1, 2] are the values for [x₁, x₂, x₃] in the first iteration; [0, 4, 1] for the second)
• Variables: [x1, x2, x3] for (x₁, x₂, x₃)