### Categories

### RSS Feed

### Search NewtonExcelBach

### Archives

### Top Posts

- Commenting a block of code in VBA
- Using Goal Seek on Multiple Cells
- Solving Quadratic, Cubic, Quartic and higher order equations; examples
- The angle between two vectors, Python version
- Using LINEST for non-linear curve fitting
- Combining arrays
- Weighted Least Squares Regression, using Excel, VBA, Alglib and Python
- Fitting high order polynomials
- Writing Arrays to the worksheet - VBA function
- Retrieving unique values from a range or array ...

### Recent Comments

Mohd Yousef on Biaxial bending update DonB on Biaxial bending update Mohd Yousef on Biaxial bending update dougaj4 on Biaxial bending update DonB on Biaxial bending update dougaj4 on Biaxial bending update DonB on Biaxial bending update Mohd Yousef on Biaxial bending update dougaj4 on Beam Fixed End Actions by Maca… Peka Odendaal (@PKOd… on Beam Fixed End Actions by Maca… Gerardo Freyre on The history of the theory of b… dougaj4 on Time in hours and minutes betw… SDAmy on Time in hours and minutes betw… Concrete Stress Bloc… on Equivalent Stress Blocks Concrete Stress Bloc… on Stress blocks in AS 3600

# Category Archives: Maths

## More powers of 3

Following the discovery of a question to which the answer is 42, the same team has now reported a sum of three cubes equal to 3. As before, the result can be checked from Excel, linking to mpmath, via pyxll. … Continue reading

Posted in Computing - general, Excel, Link to Python, Maths, Newton, PyXLL
Tagged 42, Excel, Life the Universe and Everything, mpmath, PyXLL, sum of 3 cubes
Leave a comment

## The answer to Life the Universe and Everything …

is 42, as is well-known: The actual question, to which the answer is 42, is not known, but a lesser known long standing question involving this number has recently been solved: The original problem, set in 1954 at the University … Continue reading

Posted in Computing - general, Excel, Maths, Newton, PyXLL
Tagged 42, Excel, Life the Universe and Everything, mpmath, PyXLL
5 Comments

## Plotting Mandelbrot

There are many sites discussing the Mandelbrot Set, but not many examples using VBA to plot the set in Excel, so here is my effort: The spreadsheet (including open source VBA code) may be downloaded from: Mandelbrot chart.zip Note that … Continue reading

Posted in Charts, Charts, Coordinate Geometry, Drawing, Excel, Maths, Newton, VBA
Tagged Charts, Excel, Mandelbrot Set, VBA
3 Comments

## Solving the Lagrangian Point equation for the Moon

This post was prompted by a recent question at Fitting high order polynomials, asking for Excel methods to solve the equations for the radius of the Moon’s Lagrangian Point 1. All the methods described in this post have been added to … Continue reading

Posted in Excel, Maths, Newton, UDFs, VBA
Tagged Excel, iterative solution, Lagrangian point, Newton, polynomial solution, UDFs, VBA
3 Comments

## Numerical Integration; Tanh-Sinh Quadrature v. 4.42

Back to Newton and Excel. I recently received a new update to the Tanh-Sinh Quadrature spreadsheet from Graeme Dennes, which may be downloaded from: Tanh_Sinh Quadrature. From the Readme: The Tanh-Sinh quadrature workbook has been enhanced as follows: The Tanh-Sinh … Continue reading

Posted in Charts, Excel, Maths, Newton, Numerical integration, UDFs, VBA
Tagged Double Exponential, Excel, Gauss-Kronrod, numerical integration, Romberg, Tanh-Sinh method, Tanh-Sinh Quadrature, UDF, VBA
10 Comments