MaplePrimes - Maple 11 Posts and Questions

How to use plot3d command for a parametric equation?

raj2018 — Fri, 15 Mar 2024 08:09:13 Z

Hi,

First of all, I'm beginner in Maple.
I want to plot "M" versus "kc" and "deltah" as a 3D curve (M is real and positive). Intervals of kc and deltah are given (see attached file). These three parameters (i.e, M,kc,deltah) should satisfiy the following equation:
Eq=-(1-(deltab+deltah))-(1-(deltab+deltah))/(kc-3/2)-deltah/sigmah-deltah/(sigmah*(kh-3/2))-(1/6)*deltab*sqrt(3)*mu*(1/sqrt((M-u0b+sqrt(3)*sqrt(mu*sigmab))**2)+1/sqrt((M-u0b-sqrt(3)*sqrt(mu*sigmab))**2))/sqrt(mu*sigmab)-(1/6)*sqrt(3)*(1/sqrt((M+sqrt(3)*sqrt(sigmai))**2)-1/sqrt((M-sqrt(3)*sqrt(sigmai))**2))/sqrt(sigmai)=0.

Other parameters are as follows:
kh=3, sigmah=4,sigmab=1,u0b=0.05,sigmai=1/300,deltab=1e-6,mu=1836.
3D.mw

Why is the eval command not working correctly for me?

raj2018 — Wed, 09 Aug 2023 08:55:54 Z

Hi,
I have a function "w" that the eval command does not gives the correct value of its first derivative at a fixed point. I guess the problem is due to sqrt() terms, but I can't fix it.
eval.mw

Taylor expantion

mary120 — Wed, 02 Nov 2022 21:45:05 Z

Hi,
I want to calculate the Taylor expansion of an expression with Maple, but there is an error. How can I fix it?
T.mw
Thanks

How do I solve a set of equations in Maple?

raj2018 — Sat, 22 May 2021 19:38:50 Z

Hi,

I want to solve a set of ODE(s) by Maple. How do I do that?(Please, see the attached file)
Thanks.

new.mw

Non-linear Equations

Edy2018 — Tue, 29 Dec 2020 21:38:55 Z

Hi,

I have three equations in terms of the following variables:

X,Y,X1, X2

How do I get an equation in terms of (X1,X2) with Maple from Equations 1-3?

E.mw

What does it mean?: invalid range for first variable

raj2018 — Wed, 11 Nov 2020 22:32:02 Z

Hi,
Please see the attached file.

s1.mw