My First Hour with Windows 8 (Part 1)
Last night I did a clean install of Windows 8 on my laptop – lets see what all the fuss is about…
Sean
Author: Sean
OS Detection in IDL
A lot of what I do in IDL involves using paths all over the place, the problem is, I want my code to work in Windows or Linux, but we of course have that old problem of / v \.
Switching Column Letters to Numbers in Excel
I was using a spreadsheet package earlier (hang on, this isn’t the BBC, I was using Microsoft Office Excel, other packages are available) and I wanted to find a specific column number. Not knowing off hand what the 100th letter of the alphabet is (it’s CV), I wanted to change the Excel column labelling from […]
Random number between two numbers in IDL
Generating a random number, or an array of random numbers, between 0 and 1, in IDL is easy. Simply call upon RANDOMU. But how do you generate random numbers between two other numbers?
Install G77 on Ubuntu >= 9.04
It is possible that you still need to install g77 to compile a Fortran program on your latest version of Ubuntu, but it isn’t the repositories!! Don’t worry, it is easy.
My Favourite Wikipedia Page
Everyone should have a favourite Wikipedia page, and this is mine…
The Crawshaw Method (for Quadratics)
Something all GCSE maths students (and above) need to know, and something that a large number of people use everyday, is how to factorize quadratic equations. However I’m amazed how few people know a decent (and easy) way of doing this!
A Short History of Nearly Everything – Some Corrections
I have just finished the book “A Short History of Nearly Everything” by Bill Bryson and I thought it was absolutely fantastic. There were a couple of mistakes that I noticed (and perhaps others that I did not! – and of course by ‘noticed’ I mean didn’t believe the numbers and so checked them out […]
Septentrio Receiver – Out of Geofence
A quick post, in a very small topic area. But one – that as far as I can tell – isn’t on the internet anywhere. That is if a Septentrio Receiver gives an ‘Out of Geofence’ status error.
1 = 2
Many people have seen “proofs” that 1 = 2. However most of them have an obvious fallacy – a division by 0.