cinderella

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These are questions asked by cinderella

Hii,

I am using a command -NLPSolve(Ecost1, Q = 10 .. 20, initialpoint = {Q = 10}, assume = nonnegative, maximize = false). I am looking for solution that find the Q value at the minimum value of Ecost1. But Ecost1 should not go below 0. 

and also I am getting an error -Warning, initialpoint option ignored by solver.

Kindly tell how to deal with these issues.

 

Thanks

Hello

I am looking for the table containing the value m,vv and mm. and these values I can easily copy and paste in excel sheet. 

Plz suggest commands 

 

Thanks Dummy_5.mw

Hello

for Example

A is vector A[r[= x+y , this is the equation generating multiple values. some are real and some are imaginery like,20,133, 2+3i,3+3i. I am interested the value which ilies within certain limits like 10-30. Here in this example 20 fits. So A[r] vector should store 20 only. How to do it.

 

Please help me on that. 

Thanks 

Sam := Sample(('Uniform')(10, 20), 30)


 

restart

Loading Statistics

Sam := Sample(('Uniform')(10, 20), 10)

Sam := Vector[row](10, {(1) = 18.147236863931788, (2) = 19.057919370756192, (3) = 11.26986816293506, (4) = 19.133758561390195, (5) = 16.323592462254094, (6) = 10.975404049994095, (7) = 12.784982188670483, (8) = 15.468815192049838, (9) = 19.575068354342974, (10) = 19.648885351992767}, datatype = float[8])

(1)

``

a := min(Sam)

10.9754040499940952

(2)

b := max(Sam)

19.6488853519927673

(3)

M := int((Q-x)*f(x), x = 0 .. Q)

int((Q-x)*f(x), x = 0 .. Q)

(4)

N := int((x-Q)*f(x), x = Q .. b)

int((x-Q)*f(x), x = Q .. 19.6488853519927673)

(5)

Ecost := M*co+N*cs

(int((Q-x)*f(x), x = 0 .. Q))*co+(int((x-Q)*f(x), x = Q .. 19.6488853519927673))*cs

(6)

DCost := diff(Ecost, Q)

(int(f(x), x = 0 .. Q))*co+(int(-f(x), x = Q .. 19.6488853519927673))*cs

(7)

``

Df := max(Sam)-min(Sam)

8.67348130

(8)

NULL

Val := eval(DCost, [f(x) = 1/Df, co = 20, cs = 25])

5.188228168*Q-56.63494470

(9)

QStar := fsolve(Val, Q)

10.91604742

(10)

NULL

``

NULL

``


 

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