Categories
RSS Feed
Search NewtonExcelBach
Archives
Top Posts
- Commenting a block of code in VBA
- Using Goal Seek on Multiple Cells
- The angle between two vectors, Python version
- Excel Dynamic Arrays
- Using LINEST for non-linear curve fitting
- Solving Quadratic, Cubic, Quartic and higher order equations; examples
- Fitting high order polynomials
- Cubic Splines
- Downloads
- Fine as a Bee's wing
Recent Comments
Clive James and Pete… on The Barrow Poets dougaj4 on Excel to Alglib via xlwin… Roulior Halder on Excel to Alglib via xlwin… dougaj4 on Excel to Alglib via xlwin… dougaj4 on Excel to Alglib via xlwin… dougaj4 on How to digitise a scanned… Gabriel on How to digitise a scanned… Gabriel on How to digitise a scanned… Gabriel on How to digitise a scanned… Roulior Halder on Excel to Alglib via xlwin… Roulior Halder on Excel to Alglib via xlwin… Angelo on Biaxial bending update dougaj4 on Excel to Alglib via xlwin… dougaj4 on Biaxial bending update Roulior Halder on Excel to Alglib via xlwin…
Tag Archives: angle between two vectors
The angle between two vectors, Python version
I posted a VBA function to return The angle between two vectors, in 2D or 3D last year, and have just discovered that Python and Numpy are lacking this function. Since all the suggested code I found in a quick search used: Cos θ … Continue reading
Posted in Coordinate Geometry, Excel, Link to Python, Maths, Newton, NumPy and SciPy
Tagged angle between two vectors, Numpy, Python, PyXLL
10 Comments
The angle between two vectors, in 2D or 3D
Finding the angle between two lines in 2D is easy, just find the angle of each line with the x-axis from the slope of the line and take the difference. In 3D it is not so obvious, but it can … Continue reading
Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA
Tagged 3D angle, angle between two vectors, cosine rule, Excel, UDF, VBA, vectors
9 Comments