A New Addition to the Website

I love programming, and I love to sink my teeth into a problem. Recently, I became intrigued by the Skew-T/ln p charts that meteorologists use to graph weather balloon soundings. I couldn’t find a blank graph online that completely satisfied my high-quality printing expectations, so I decided to create one myself. If you’re a closeted weather geek, or if it’s your main thing, you might find this resource useful to you. Let me know if you like it, or if you think something could be improved. You can find the Skew-T link here.

4 Replies to “A New Addition to the Website”

  1. Bret,
    OUCH… I entered a loan AM for 113, 600 at 6% on a 30 year AM. In the summary, it calculated a balloon payment of $192,019.00. Did that calculation assume no interest only payments made at all over the term of the note? I’m confused.

    Perhaps the entry section should have an option for interest only payments and the spreadsheet calculate differently?

    1. Carol, there is currently no provision in the calculator for interest-only payments. At present the calculator is only designed to do straight-ahead amortization. (Of course, anything is possible with additional programming, but I also value keeping things as simple as possible, and interest-only payments are easy to calculate without using higher math.)

  2. Good day.

    I am happy to be part of this blog because I think I have finally gotten to where I will get answers to my months long questions about procedures of writing a graph algorithm and SkewT-lnP chart.

    So sir I have downloaded and read your SkewT-lnP source code (format CWeb) I don’t understand it because I only know how to code in c#. Therefore, sir, can you help me convert to c# code or if you have it pseudo code I will appreciate it. Thanks.

    1. I apologize for the long-delayed response. The blog gets lots of SPAM, and I don’t always notice the legitimate messages that come through.

      I’m sorry, I don’t know C#, and I have no pseudo code. The equations for the curves themselves should be well-documented in the text (the most difficult part of the project was figuring what to calculate and how). You should be able to re-implement the equations in whatever language you choose. Unfortunately, I don’t have time to assist you further with a new implementation, but if you have any outstanding questions regarding by existing code, I will do my best to answer.

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