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Solving online…

Ξ December 4th, 2009 | → 0 Comments |
∇ Mathematics, Tools | ∇ , , , |

There are several online Math tools to do all sorts of things like: plotting graphs, applying operations on matrices… but there is one that I’ve enjoying a while now.

Using Wolfram’s WolframAlpha to solve analyze functions/solve equations (just to make sure the result is correct) is an excellent experience. Just type:

solve  4x^3 - (2 + x^2)x^2 = -3x

and in a second you get the equations solutions and the related plot. This tools is also able to do symbolic derivatives and integrations. See more examples here.

 

Math formulas with LaTeX

Ξ December 2nd, 2009 | → 0 Comments |
∇ Mathematics | ∇ , , , |

You might still don’t know about it, but I’m taking a course on Applied Mathematics. So, you might expect to start to see some strange topics on this blog, specially now that blog this supports Latex formulas using the WP-QuickLaTeX plugin.

The following is just a test…

R_r^t(t_r,t^t) = \rho_r^t(t_r,t^t) - (\delta t_r - \delta ^t) c + \delta_{ion} + \delta_{tro} + \delta_{mul} + \delta_{rel} + \epsilon

\lambda \Phi_r^t(t_r) = \rho_r^t(t_r,t^t) - (\delta t_r - \delta ^t) c + \delta_{ion} + \delta_{tro} + \delta_{mul} + \delta_{rel} + \lambda N_r^t + \epsilon

For those that don’t recognize them immediately, the above formulas are the measurement models for Pseudorange (R_r^t) and Carrier Phase (\Phi_r^t) for the GPS and Galileo satellites.

 


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