OriginLab Corporation - Scientific Graphing and Data Analysis Software - 2D graphs, 3D graphs, Contour Plots, Statistical Charts, Data Exploration, Statistics, Curve Fitting, Signal Processing, and Peak Analysis

Simple Math

 

Description

This tool performs simple arithmetic on a curve, or between two curves (datasets). For example, you can add, subtract, divide or multiply a constant on a curve, as well as calculate an exponent. You can also add a constant on a dataset, or subtract a curve by another one. When you perform operation on two curves, if their coordinates are not consistent, the operand XY range will be interpolated or extrapolated first.

To use this function:

  1. Create a new worksheet with input data.
  2. Highlight desired columns and select Plot:Line:line to plot a curve.
  3. Select Analysis: Mathematics: Simple Curve Math. This opens mathtool dialog.

In fact, the mathtool X-Function is called to complete the calculation.

Dialog Options

Input

Input XY data range or curve.
Operator

Specify an operation.

 

  • Add
    addition.
  • Subtract
    Subtraction.
  • Divide
    Division.
  • Multiply
    Multiplication.
  • Power
    Power
Operand

The operand type.

  • Const
    Use constant as operand.
  • Reference Data
    Use reference curve as operand.
Reference Data

Specify a curve (XY Range) as operand. This option is available when select Reference Data from Operand drop-down.
Const

Specify a constant as operand. This option is available when select Const from Operand drop-down.
Use Common Range Only

Operate on the common range between the two curves. This checkbox is available when select Reference Data from Operand drop-down.
Rescale Source Graph

Specify whether to rescale the source graph after arithmetic operation.
Output

Specify the output data range.