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13 years, 193 days

MaplePrimes Activity

These are questions asked by Hamidreza

Hi, I got a simple question. I want to use the add function but with an increment rather than 1. for example add(a[i], i = 1 .. 4) gives a[1]+a[2]+a[3]+a[4], whereas I want to have a[1]+a[3] for instance. Please let me know how I can define it that way. Thank you,
Hi, I am using this code to verify if my function satisfies positiveness / negativeness under assumed ranges or not. assume(`θ_e`, 'real', 0 <><> true then print(b[1]); break else favorableDF_Exists := 1 end if; := '`θ_e`'
Hi, I have a set of plots which is determined at each step of a for loop of my subroutine. But display function does not work when I put it inside the loop. Please tell me what I need to do to make it work. Thank you,
Hi, I solved a differential equation which is: ode := diff(y(x), x) = 2*(e1*m_b*sqrt(y(x))+m_b*psi+m_b*c1*(R0^2-y(x))); dsolve(ode); but the answer that I got is: x-Intat(1/(2*m_b*(e1*sqrt(_a)+psi+c1*R0^2-c1*_a)), _a = y(x))+_C1 = 0 How can I interpret this answer? Thank you,
Hi, I have defined a function like b1_Func := (t) -> b[1]+t; The value of b[1] is being updated somewhere in the code, but I do not want this change in b[1] influences the initial definition of my function. i.e. I want to define it as initial value of b[1]. How can I do that? Moreover, in general, how can I define variables which must be calculated just once without any update? e.g. b:=x+1 and x is changing, but I don't want this change to influence the last calculated value of b Thank you,
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