Wedgie/Archived version: Difference between revisions
This is just a test |
This is just a test |
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=====Computing the previous example in Maple===== | =====Computing the previous example in Maple===== | ||
In fact one can directly do many computations in Maple. Let us associate to the i'th prime the variable [math] x_i [/math]. | In fact one can directly do many computations in Maple. Let us associate to the i'th prime the variable [math] x_i [/math]. So for example 7 corresponds to [math] x_4 [/math]. Then we introduce a basis vector [math] dx_i [/math] associated to the variable [math] x_i [/math]. Then to a pair of primes, for example [math] (3,7) [/math], we associate a basis vector [math] dx_2 \wedge dx_4 [/math]. Similarly if we have 3 or more primes. | ||
In this way let's write E19 = {{val| 19 30 44 53 }} and E31 = {{val| 31 49 72 87 }} as [math] e_{19}=19dx_1+30dx_2+44dx_3+53dx_4 [/math] and [math] e_{31}=31dx_1+49dx_2+72dx_3+87dx_4 [/math]. Then we simply compute the exterior product | |||
[math] \displaystyle e_{19} \wedge e_{31}=dx_1\wedge dx_2+4dx_1\wedge dx_3+10dx_1\wedge dx_4+4dx_2\wedge dx_3 +13dx_2\wedge dx_4+12dx_3\wedge dx_4[/math]. | |||
==Truncation of wedgies== | ==Truncation of wedgies== | ||