How i can write this formula in Smath Studio? - How i can write this formula in Smath Studio? - Сообщения
#1 Опубликовано: 18.05.2018 10:05:41
I have one formula where it is necessary to make a sum in a way that takes into account 5 coefficients of a polynomial. In the sum he is marked as ak and I need that instead of ak there was a1..a2..a3 ... a4 ... a5. Also, for each polynomial account, the power K automatically changes from the index of the polynomial 1..2..3..4..5. How to implement it in this program? Also, I have several layers of reinforcement in the equation that should also be instead of Asi to As1...As2...As3...Asn and Sigma_si to Sigma_s1...Sigma_s2...Sigma_s3...Sigma_sn . Sorry for bad English.
Arkush1.sm
Arkush1.sm
#2 Опубликовано: 18.05.2018 10:32:44
You made the following error: you used "a.k" instead of "a[k". This way you did not create vectors to use in the summation with the counter. You need to do to define and then use As and Sigmas.
sergio
sergio
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yuriy1996 18.05.2018 11:16:00
#3 Опубликовано: 18.05.2018 10:38:06
I corrected a.k for a[k but how do I set 5 values for one variable a[k?
#4 Опубликовано: 18.05.2018 10:55:32
for example a[1:=2.5 a[2:=3.21 a[3:=-7.1
so "a" is a vector
in the sum a[k
sergio
so "a" is a vector
in the sum a[k
sergio
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yuriy1996 18.05.2018 11:15:00
#5 Опубликовано: 18.05.2018 11:13:48
Unable to determine the value of an element since the item with the specified index does not exist -error
#6 Опубликовано: 18.05.2018 11:16:25
#7 Опубликовано: 18.05.2018 11:46:35
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yuriy1996 18.05.2018 11:49:00
#8 Опубликовано: 18.05.2018 12:29:55
#9 Опубликовано: 18.05.2018 13:18:18
... you may clean/recast a bit.
You have 11 sets of 'a'
Easy to tabulate, is it what you want ?
#10 Опубликовано: 18.05.2018 13:51:50
Pl look at this. Error may have occurred when entering the formula???? Difficult to trace.
Unable to select individual components of the erroneous formula.
Arkush1_ndtma.sm
Unable to select individual components of the erroneous formula.
Arkush1_ndtma.sm
Look within!... The secret is inside you.
Best Regards
Eng. NDTM Amarasekera - Sri Lanka
#11 Опубликовано: 18.05.2018 14:53:49
#12 Опубликовано: 18.05.2018 21:34:10
Pl look at this. Error may have occurred when entering the formula???? Difficult to trace.
Unable to select individual components of the erroneous formula.
There it seems the formula is ill posed wrt [4.1].
It shows bfcd as something not defined but the originator
has defined b, and defined fcd ... b*fcd.
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