# MaplePrimes Questions

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### Find coeffecients in system of equations...

July 07 2016
0 1

Hello,every one,i want to solve system of equations but i recieve an error ,how can i find the coeffecients c1,c2,c3,c4?thank.

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### Subsituting value of variable in differential equa...

July 07 2016
0 12

Hi,

Here is my question.

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 (1)
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 (2)
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I am trying to substitute value of lambda(t-t1) further but it is not taking the value.

Regards

Sunit

### Notation of diff and ' that is diff(f(x),x) and f'...

July 07 2016
0 4

#Hello people in Mapleprimes,

#After

restart;interface(typesetting=extended);

diff(f(x),x);

#shows f'(x).

#But,

diff(f(t1),t1);

#shows just df(t1)/dt1, not f'(t).

#Can't I show f'(t1) not df(t1)/dt1?

#Is this a way peculiar to Maple?

#I hope someone could give me some hints.

#Best wishes.

#taro

### How do you add a superscript in maple?...

July 07 2016
0 4

Hello,

I would like to know how one would add a superscript in maple? For example, I need to label an axis with unit cm^-1 but it shows 1/cm (like a fraction) when executed. How could I avoid this so the graph label would output cm^-1? Thank you for your help in advance!

Gambia Man

### Typing of accents in code edit region of maple 201...

July 07 2016
2 4

Please how do I type accents in code edit region of maple 2015.1 (for instance putting "Hat over" on alpha)?

Thank you.

### solving system of non linear equations...

July 07 2016
2 1

hello every one.please help me with solving this equations.i can not solve this and i need it.thanks

eq1 := (cos(beta2)-1)*w11-sin(beta2)*w12+(cos(alpha2)-1)*z11-sin(alpha2)*z12-cos(delta2) = 0; eq2 := (cos(beta2)-1)*w12+sin(beta2)*w11+(cos(alpha2)-1)*z12+sin(alpha2)*z11-2*sin(delta2) = 0; eq3 := (cos(beta3)-1)*w11-sin(beta3)*w12+(cos(alpha3)-1)*z11-sin(alpha3)*z12-3*cos(delta3) = 0; eq4 := (cos(beta3)-1)*w12+sin(beta3)*w11+(cos(alpha3)-1)*z12+sin(alpha3)*z11-4*sin(delta3) = 0; eq5 := (cos(beta4)-1)*w11-sin(beta4)*w12+(cos(alpha4)-1)*z11-sin(alpha4)*z12-5*cos(delta4) = 0; eq6 := (cos(beta4)-1)*w12+sin(beta4)*w11+(cos(alpha4)-1)*z12+sin(alpha4)*z11-6*sin(delta4) = 0; eq7 := (cos(beta5)-1)*w11-sin(beta5)*w12+(cos(alpha5)-1)*z11-sin(alpha5)*z12-7*cos(delta5) = 0; eq8 := (cos(beta5)-1)*w12+sin(beta5)*w11+(cos(alpha5)-1)*z12+sin(alpha5)*z11-8*sin(delta5) = 0; alpha2 := -20; alpha3 := -45; alpha4 := -75; alpha5 := -90; delta2 := 15.5; delta3 := -15.9829; delta4 := -13.6018; delta5 := -16.7388; P21 = .5217; P31 = 1.3421; P41 = 2.3116; P51 = 3.1780;

### manipulate a fraction ...

July 06 2016
2 8

Hi,

If I have a fraction like this w^2/(w^4+2*w^2+1) , how can I make it presented in Maple as  '1/(w^2+1/w^2+2)' (Both numerator and denominator divided by w^2) ?

### How to show values with unit that includes the num...

July 06 2016
0 6

When using units, then e.g. "2 m" is show as expected below, but "1 m" shown as only "m".  Even through correct, it is a non-standard way to write physical values.

How to get the physical values in a format of "{numerical} {unit}" even when the numerical part is 1?

### How to write equations with unknown arguments, whe...

July 06 2016
0 7

In a simple example below I try to write an equation with an unknown value present among other values that have unit, but I get an error since the unknown value d does not have a unit yet.

How to write such expressions, e.g. for use in solve later?

July 06 2016
0 0

Dear MapleSoft,

Would it be possible you once design a MapleSim webinar for users with more emphasis on Modelica (language, examples, etc.), on how to build more complex custom components, not just a simple DC motor? I think this would be very useful and could extend / enhance the use of MapleSime even more.

best regards

Andras

July 06 2016
0 1

you write:

July 05 2016
0 5

### How to defined new function based on other functio...

July 05 2016
0 4

In the code below the new function g is defined based on existing function f, but the new function g is then dependent on f at the time of definition, which is shown since later changes to f will change value of g.

How to fix definition of g based on f at the when g is defined, so later changes of f does not alter g ?

July 05 2016
0 0

### Collocation or Galerkin Methods in maple...

July 05 2016
0 5

hi

maple with collocation and galerkin methods

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