What do we have that is similar to Lecroy's xMath?

What do we have that is similar to Lecroy's xMath?

The TDS5000/B, TDS6000 & TDS7000/B oscilloscopes include as standard features many of the functions found in LeCroy's optional XMATH package such as math equations, FFT, histograms and graph functions. In addition, the Open Windows architecture makes it simple to extend the functions beyond those provided through the use of third party analysis software. Lecroy has a closed architecture that requires special software modules.