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extract a row from an iteration
 Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9  Location: Lima
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I am learning how to use Smath Studio, I want to write an iteration where an increment of 0.5 is added to two declared variables "a" and "b" which are replaced in a formula and it gives me a final value "X" and the condition is that the iteration stops when the final value is equal to or less than a declared value "Y" to finally extract from the iteration array the row with the three values that meet this condition: [a b X]
I appreciate your help in advance, I am willing to donate
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Joined: 04/07/2015(UTC) Posts: 6,866  Was thanked: 981 time(s) in 809 post(s)
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Show your departure work, to be more helpful. Cheers ... Jean.  Iterate Demo.sm (48kb) downloaded 5 time(s).
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Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9 Location: Lima
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Originally Posted by: Jean Giraud  Show your departure work, to be more helpful. Cheers ... Jean. This is the structure that I have been writing to iterate but I need to extract the row of interest, which in this example has to be less than or equal to sigma_adm_suelo, this row is the last matrix_programming.sm (14kb) downloaded 7 time(s).
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Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9 Location: Lima
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Originally Posted by: Orlando Originally Posted by: Jean Giraud Show your departure work, to be more helpful. Cheers ... Jean. I already resolved it matrix_programming.sm (14kb) downloaded 10 time(s).
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Joined: 11/01/2018(UTC) Posts: 133   Location: Wisconsin Was thanked: 61 time(s) in 38 post(s)
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Greetings, You may want to consider the use of a for loop instead of a while statement: Copy and Paste the following into your worksheet: Code:line(#,for(i:1,i<10,i:i+1,line(#,#,#,#,4,1)),#,3,1)
May this be of Good Help; ⚜ Kenny Lemens, P.E. ᵂᴵ |
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Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9 Location: Lima
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Originally Posted by: Kenny Lemens Greetings, You may want to consider the use of a for loop instead of a while statement: Copy and Paste the following into your worksheet: Code:line(#,for(i:1,i<10,i:i+1,line(#,#,#,#,4,1)),#,3,1)
May this be of Good Help; ⚜ Kenny Lemens, P.E. ᵂᴵ The result I am looking for is that it meets the initial condition, how would I stop at the iteration that meets this condition, to be able to do it using the "for" command that you suggested and not the 10 iterations that I declare for "i" matrix_programming_for.sm (17kb) downloaded 4 time(s).
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Joined: 28/08/2014(UTC) Posts: 1,356  Was thanked: 815 time(s) in 516 post(s)
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Hola Orlando. You can use break inside the for loop. matrix_programming_for.sm (18kb) downloaded 6 time(s).Best regards. Alvaro.
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Rank: Advanced Member Groups: Registered
Joined: 11/01/2018(UTC) Posts: 133 Location: Wisconsin Was thanked: 61 time(s) in 38 post(s)
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Greetings, The 'i < 10' statement would be replaced with your criteria (ie., ≤ σ.adm_suelo). Regardless, the largest issue you have is with regards to how SMath programs; you need to follow the 'rules' of setting up programming functions within a line() group, where the last item is the value returned as a result. Copy and paste the following into your worksheet: Code:C.summary:+line(C:matrix(max_rows:1,3),for(i:1,({1.075*(P.CM+P.CV)}/{B.zap_0*L.zap_0}-{6*(M.CMx+M.CVx)}/{B.zap_0*L.zap_0^2}+{6*(M.CMy+M.CVy)}/{L.zap_0*B.zap_0^2}≤σ.adm_suelo),i:i+1,line(el(C,i,1):B.zap_0,el(C,i,2):L.zap_0,el(C,i,3):{1.075*(P.CM+P.CV)}/{B.zap_0*L.zap_0}-{6*(M.CMx+M.CVx)}/{B.zap_0*L.zap_0^2}+{6*(M.CMy+M.CVy)}/{L.zap_0*B.zap_0^2},B.zap_0:B.zap_0-Δ,L.zap_0:L.zap_0-Δ,5,1)),C,3,1)
The matrix produced by C.Summary should be what you are after (I simplified the equ by removing Maxima() function calls) May this be of Good Help; ⚜ Kenny Lemens, P.E. ᵂᴵ |
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Rank: Guest
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9 Location: Lima
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Originally Posted by: Jean Giraud I have a problem, the power went out and now my file does not open. What can I do, does anyone know how to restore it? ZAPATA_AISLADA.sm (155kb) downloaded 8 time(s).
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 Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,647  Location: Italy Was thanked: 1329 time(s) in 875 post(s)
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Hello Orlando, Originally Posted by: Orlando What can I do, does anyone know how to restore it? I'm sorry but the file is not recoverable (is filled with null characters). |
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Rank: Guest
Groups: Registered
Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Originally Posted by: Orlando I have a problem, the power went out and now my file does not open Code the while loop from reconstruction. 
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Rank: Newbie
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Joined: 17/05/2023(UTC) Posts: 9 Location: Lima
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ZAPATA_AISLADA - AVANCE.sm (144kb) downloaded 6 time(s).Originally Posted by: Jean Giraud Originally Posted by: Orlando I have a problem, the power went out and now my file does not open Code the while loop from reconstruction. Hello, I have already made progress with a new file, I used the "for" command and after extracting the first matrix with the values that meet the condition, I made the next iteration with another formula compare the first two columns and extract the matches next to the third column that has a different result, thanks for the help to all of you, I will continue posting new concerns and I will make my donation to smath studio
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