Simple logo design

Create a logo for the website [login to view URL] The logo should be simple but effective. The site has to do with calculations, so if you can incorporate some type of calculator with the logo that'd be great. I need the logo to have three versions: white background, black background, and transparent. All in PNG format and the original PSD. A vector image should also be available so that it can be put on a t-shirt. I'm looking to keep the logo under 20KB file size and the approximate dimensions of the current logo at the website. Those sending their idea or mockup with their bid will be given first dibs. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). PSD and PNG files as well as vector format image ## Platform Photoshop file required