mathiaszip

Complex solutions...

Asked: mathiaszip 10 Product: Maple 18

December 12 2017

2 2

Hi

I d like to limit my solution to a real (non complex) solution
There should be a simple solution to my calculation but maple can t process the solutions in one of my "solve" commands.

How can do I tell maple to limit itself to one

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#geometry [mm]

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#concrete [MPa]

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sigma := fcm*(-eta^2+eta*k)/(1+(k-2)*eta);

38*(-206611.5702*`ϵc`^2+1154.999999*`ϵc`)/(1+245.9090904*`ϵc`)

(7)

#steel [MPa]

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(8)

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(9)

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(10)

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Error, complex argument to max/min

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Error, complex argument to max/min

(11)

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Download mathias.mw

simple non complex solutions ?

nested loop not working...

Asked: mathiaszip 10 Product: Maple 18

December 12 2017

1 0

Hi

I m trying to do a nested loop but for some reason maple tells me my for loop is unterminated

I d love some feedback on my code and on how to make it work

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#geometry [mm]

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#concrete [MPa]

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(2)

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(3)

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sigma := fcm*(-eta^2+eta*k)/(1+(k-2)*eta);

38*(-206611.5702*`ϵc`^2+1154.999999*`ϵc`)/(1+245.9090904*`ϵc`)

(7)

#steel [MPa]

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(8)

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(9)

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(10)

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Error, unterminated loop

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Download mathias.mw

Thanks in advance

Help ...Maple will not plot...

Asked: mathiaszip 10 Product: Maple

December 02 2017

1 0

Hi

II ve managed to build an expression with one variable
I me trying to plot this expression on a defined range but maple doesn t not let me.

How do I manage to plot this expression ?

If you have any advise on how to improve my code I m open to comments

Thanks a lot in advance

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#data

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#geometry

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#coefficients

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#formula

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`σc` := proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc;

proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc

(2)

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#Pressure as a function of y (y=) :

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`σc` := proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc;

proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc

(3)

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int(25*(1302.000000*`ϵc`*x/x-226757.3696*`ϵc`^2*x^2/x^2)/(1+349.6190476*`ϵc`*x/x), x = 0 .. x)

(4)

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C := `assuming`([int(fcm*(k*`ϵc`*s/(x*`ϵc1`)-(`ϵc`*s/(x*`ϵc1`))^2)*b/(1+(k-2)*`ϵc`*s/(x*`ϵc1`)), s = 0 .. x)], [0 < x and x <= (1/2)*d, 0 <= `ϵc` and `ϵc` <= 0.35e-2]);

-0.7487980799e-19*x*(0.2706771684e26*`ϵc`^2+0.1331955800e22*ln(874047619.*`ϵc`+2500000.)-0.1962210817e23-0.4656771182e24*`ϵc`)/`ϵc`

(5)

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Error, (in plot) expected a range but received `ϵc` = 0 .. 0.34e-2

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Download HW1_-_EC2_strain-pressure_graph.mw

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#data

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(1)

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#geometry

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#coefficients

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#formula

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`σc` := proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc;

proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc

(2)

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#Pressure as a function of y (y=) :

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`σc` := proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc;

proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc

(3)

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int(25*(1302.000000*`ϵc`*x/x-226757.3696*`ϵc`^2*x^2/x^2)/(1+349.6190476*`ϵc`*x/x), x = 0 .. x)

(4)

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C := `assuming`([int(fcm*(k*`ϵc`*s/(x*`ϵc1`)-(`ϵc`*s/(x*`ϵc1`))^2)*b/(1+(k-2)*`ϵc`*s/(x*`ϵc1`)), s = 0 .. x)], [0 < x and x <= (1/2)*d, 0 <= `ϵc` and `ϵc` <= 0.35e-2]);

-0.7487980799e-19*x*(0.2706771684e26*`ϵc`^2+0.1331955800e22*ln(874047619.*`ϵc`+2500000.)-0.1962210817e23-0.4656771182e24*`ϵc`)/`ϵc`

(5)

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(6)

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(7)

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Error, (in plot) expected a range but received `ϵc` = 0 .. 0.34e-2

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Download HW1_-_EC2_strain-pressure_graph.mw

HELP !! Maple doesn t want to give me th...

Asked: mathiaszip 10 Product: Maple

December 01 2017

1 0

Hi

I have to create a function "I(epsilonc)" by integrating a function "sigma(y)" from 0 to the variable "epsilonc"

but maple doesn t give me the actual formula of the integrated function, it only gives me equation 4 which is utterly useless to me.

How do I get Maple to actually calculate and give me the integrated function ??

Any help will be greatly appreciated

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#data

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(1)

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#geometry

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#coefficients

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#formula

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`σc` := proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc;

proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc

(2)

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#Pressure as a function of y (y=) :

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`σc` := proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc;

proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc

(3)

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Iy := proc (y) options operator, arrow; int(fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)), y = 0 .. `ϵc`/(`ϵc`+Fy/Es)) end proc;

proc (y) options operator, arrow; int(fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)), y = 0 .. `ϵc`/(`ϵc`+Fy/Es)) end proc

(4)

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Iy(`ϵc`/(`ϵc`+Fy/Es))

Error, (in int) integration range or variable must be specified in the second argument, got `ϵc`/(`ϵc`+1/400) = 0 .. `ϵc`/(`ϵc`+1/400)

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Download HW1_-_EC2_strain-pressure_graph.mw

>

#data

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(1)

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#geometry

>

#coefficients

>

#formula

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`σc` := proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc;

proc (epsilon) options operator, arrow; fcm*(k*epsilon/`ϵc1`-epsilon^2/`ϵc1`^2)/(1+(k-2)*epsilon/`ϵc1`) end proc

(2)

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#Pressure as a function of y (y=) :

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`σc` := proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc;

proc (y) options operator, arrow; fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)) end proc

(3)

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Iy := proc (y) options operator, arrow; int(fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)), y = 0 .. `ϵc`/(`ϵc`+Fy/Es)) end proc;

proc (y) options operator, arrow; int(fcm*(k*`ϵc`*y/(x*`ϵc1`)-`ϵc`^2*y^2/(x^2*`ϵc1`^2))/(1+(k-2)*`ϵc`*y/(x*`ϵc1`)), y = 0 .. `ϵc`/(`ϵc`+Fy/Es)) end proc

(4)

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Iy(`ϵc`/(`ϵc`+Fy/Es))

Error, (in int) integration range or variable must be specified in the second argument, got `ϵc`/(`ϵc`+1/400) = 0 .. `ϵc`/(`ϵc`+1/400)

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Download HW1_-_EC2_strain-pressure_graph.mw

Help !! maple won t plot and won t integ...

Asked: mathiaszip 10 Product: Maple

November 28 2017

2 2

Hi I have a function i d live to plot and integrate but maple tells me there is a probleme with the range when i want to plot and will not give me a numerical value of the integral :

What am i doing wrong ??

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