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change the vector element in the variable X to a matrix element => el(X,ij) to el(X,i,j) 
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Originally Posted by: soomoon  how can i type this? Step by step: 1 - X 2 - [ 3 - i 4 - , (, or ; which one is your argument separator) 5 - j > X[i,j Regards
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How can i type this example in smath? 
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Hi. Some options. Notation.sm (5kb) downloaded 10 time(s). Best regards. Alvaro.
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Originally Posted by: mrslk  How can I type this example in Smath In otherwise subscript style ... parametric/productive.
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Originally Posted by: Razonar  Hi. Some options. Notation.sm (5kb) downloaded 10 time(s). Best regards. Alvaro. Thanks for answering. But how write superscripts?
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Originally Posted by: mrslk  ... Thanks for answering. But how write superscripts? Hi. No practical way in SMath, but with Unicode characters. Search for 'cero' in your language in windows charmap, copy and paste.  To do it without artifice you would have to have a function, like in Mathematica: https://reference.wolfra...age/ref/Superscript.htmlBest regards. Alvaro.
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