2.8.19 mathtool

1 Menu Information
2 Brief Information
3 Command Line Usage
4 X-Function Execution Options
5 Variables
6 Examples
7 More Information
8 Related X-Functions

Menu Information

Analysis: Mathematics: Simple Curve Math

Brief Information

Perform simple arithmetic on a curve or XY data range.

Command Line Usage


mathtool iy1:=(Col(1), Col(2)) iy2:=(Col(3), Col(4)) operator:=sub;
mathtool iy1:=Col(2) operator:=add operand:=const const:=10;
mathtool iy1:=Col(2) operator:=custom iy2:=Col(3) formula:=y1*100+y2^2 oy:=(<new>,<new>);

X-Function Execution Options

Please refer to the page for additional option switches when accessing the x-function from script

Variables

Display Name	Variable Name	I/O and Type	Default Value	Description
Input	iy1	Input XYRange	<active>	Input XY data range or curve
Operator	operator	Input int	add	Operator Option list add:Add Addition sub:Subtract Subtraction Div:Divide Division mul:Multiply Multiplication pow:Power Power custom:Custom Customize with formula
Operand	operand	Input int	data	The operand type. Option list Const:Const Use constant as operand Data:Reference Data Use reference curve as operand
Reference Data	iy2	Input XYRange	<optional>	Specifies a curve (XY Range) as operand. This option is available when you select Reference Data from the Operand drop-down. When the two datasets' coordinates differ, the two curves will be interpolated or extrapolated with linear interpolation before the specified operation is performed.
Constant	const	Input double	10	Specifies a constant as operand. This option is available when select Const from Operand drop-down.
Formula	formula	Input string	<unassigned>	Specifies the formula to calculate, in which y1 means Input1 and y2 means Reference data. This option is available when Custom is selected from Operator drop-down list.
Use Common Range Only	common	Input int	0	Operate on the common range between the two curves. This checkbox is available when select Reference Data from Operand drop-down.
Rescale Source Graph	rescale	Input int	1	Specify whether to rescale the source graph after arithmetic operation.
Output	oy	Output XYRange		Specifies the output data range. In script, the default option is <input>, while in GUI, defult is <new>. See the syntax here.
X Minimum	xmin	Output double	<unassigned>	Minimum X value of output curve
X Maximum	xmax	Output double	<unassigned>	Maximum X value of output curve
X Mean	xmean	Output double	<unassigned>	Mean X value of output curve
Y Minimum	ymin	Output double	<unassigned>	Minimum Y value of output curve
Y Maximum	ymax	Output double	<unassigned>	Maximum Y value of output curve
Y Mean	ymean	Output double	<unassigned>	Mean Y value of output curve

Examples

Import Gaussian.dat from <Origin Program Directory>\Samples\Curve Fitting folder.
Highlight column B and select Plot > Basic 2D : Line to plot a curve.
Type the following script in the script window to open mathtool dialog:
mathtool -d;

Or with Gaussian.dat worksheet active, click Analysis: Mathematics: Simple Curve Math to open mathtool dialog.
Select Subtract from Operator drop-down list, and make sure Reference Data selected in Operand. Click the interactive data selection button to the right of Reference Data branch, and select column C in the source worksheet as Operand. And then click OK button.