Finite Element Method

Finite Element Method (有限要素法, Yūgenyōsohō): The Finite Element Method is a special Caster-Type Magic which is known by only a select few people; this is either because of its extreme power, or the fact that it requires incredible brainpower to utilize properly.

Description
The practical application of the magic is less complicated than the theory, in truth. However, due to the understanding required to put the theory into application, many tend to avoid the use of this magic. In order to convert a natural phenomena into either variable 'A' or 'B', one must be able to comprehend what goes into either variable. In a simplistic form, the equations can be described as 'element = effect'; where 'A' is the element the individual attempts to bind to their mathematical rule, while 'B' is the desired effect and phenomena the user reproduces. While the magic possesses enormous use, it is also particularly difficult to control the area-of-effect and direction of any given phenomena, therefore promoting the use of smaller-scaled phenomena in order to control the tide of a battlefield. Nonetheless, the way one expresses these variables in combat is by surrounding a specific area with the influence of one's magical energy, in a similar manner to. From here, the user can then allow the magical energy to catalyze and contain the said phenomena, and hopefully allow them to act upon the opponent. Although, it should be noted that this magic does not bind the individual within these confines, but only the magically reproduced natural disaster; therefore, it is possible to evade it with enough skill.

Trivia

 * While Per had already thought of the basic idea, it was Ashy who simplified the description so it became useable. Thanks!