Category Archives: Excel

Dancing Pendulums

Posted on 25/05/2011 by dougaj4

This animation was produced in response to a video of real pendulums performing similar tricks: Not having an animation program I thought I’d use the finite element program Strand7.  Modelling the pendulums was easy, just 15 beam elements with a … Continue reading →

Posted in Animation, Excel, Finite Element Analysis, Newton | Tagged , , , | 5 Comments

Using LinEst() on data with gaps

Posted on 14/05/2011 by dougaj4

A comment on Using LINEST for non-linear curve fitting asked if it was possible to use the function on data with gaps.  There are several options: Copy and sort the data to remove the gaps. Use the chart trendline function Use … Continue reading →

Posted in Arrays, Excel, UDFs, VBA | Tagged , , , , | 40 Comments

Using Array Formulas

Posted on 10/05/2011 by dougaj4

Many of my User Defined Functions (UDFs) return an array of values, that requires a special procedure to make all the values visible. I have usually given a brief description of the procedure with the UDF, but for convenience for … Continue reading →

Posted in Arrays, Excel, UDFs | Tagged , , | 20 Comments

Showing numerical values of formulae cell references

Posted on 28/04/2011 by dougaj4

This post follows from a discussion at Eng-Tips The original question was for a way of displaying the value of each component of an Excel formula.  It is easy to display the formula, rather than the result, for all the … Continue reading →

Posted in Excel, VBA | Tagged , , , , | 9 Comments

Beware of the mod

Posted on 22/04/2011 by dougaj4

Playing with a simple VBA user defined function (UDF), inspired by a thread at Daily Dose of Excel, I was finding it was mysteriously giving the wrong answer. The task was to find the angle between the hands of an … Continue reading →

Posted in Excel, UDFs, VBA | Tagged , , | 2 Comments