Lali_miani

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7 years, 128 days

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These are questions asked by Lali_miani

f(x)=sqrt(sin(x)); x over the intervall [0,T]

can anyone help me to find this integral ?

 


 

sin(Pi/12);

(1/4)*6^(1/2)*(1-(1/3)*3^(1/2))

(1)

 


 

Download calculation.mws

can anyone explain to me this result ?

in the book "maple by example" they said that sin(Pi/12);
sin (1/12 π)
returns sin(π/12) because it does not know a formula for the explicit value of sin(π/12). but when i'm calculated this in maple i had got , this result, what does this result mean ?

 

we know that the exponotial function is represented as a taylor series, that means that the exponontial of any value is approximatvly evaluated ,the same thing of sinus function when i calcute sin(Pi/6) it give me the exacte result,
 

sum(0^i/i!,i=0..infinity);

0

(1)

exp(0);

1

(2)

sin(0.2);

.1986693308

(3)

sin(Pi/6);

1/2

(4)

sin(Pi/2);

1

(5)

 


 

Download trying.mws

,can anyone explain to me these results ?

 we know that  maple evaluate an expression as a tree, for example if i have the expression:

f:=x^2*exp(3/2)*sin(Pi/3-1/x);

i want to get all the tree, is there a command to obtain this !!

can anyone tell me the difference between subs and eval and  evalf ?

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