Hello everyone, I am a new user of Smath and i have a problem trying to replicate an mathcad doc to smath doc

I'm trying to do a interaction column diagram, but when i value my functions with an "a" vector (name in doc), give me an error "the divisor matrix must be square" (i dont know if this error is correct in english, because i'm using smath in spanish)




I need help to value my functions "ϕM.n()" and "ϕP.n()" with an "a" vector because, after that, i'm going to do a graph when the X axis going to be ϕP.n() and the Y axis going to be ϕM.n()

just need 2 matrix with 1 col and i rows (rows depend of numbers of elempents of "a" vector" )

with those 2 matrix, im going to "augment" them to get my graphic, this graph have to take this form



Thx for help


PD: this video im trying to trplicate.



SMATH archive
https://drive.google.com/drive/folders/1CAOw4w0NTpdL9rd7qVUg_qmZB25SuoDQ?usp=sharing


any question, i'm available ♥

cuando definas la función ϕM.n(a)
usa line



y después para usarla sobre a usa la vectorización