# Items tagged with mathematicamathematica Tagged Items Feed

April 01 2013 by

### Is Bayes theorem simpler in Mathematica?...

February 26 2013 by Maple

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I came across this post http://www.stiglerdiet.com/2012/02/10/mathematica-a-love-story/

and in the commented section near the end someone mentions this can not be elegantly done in Maple.  I would like to disprove this comment.  He says "There’s NO WAY any numeric language like R or Maple can try to do this."

I don't believe it, and I welcome anyone to disprove his...

### How to integrate exponential integrals...

February 26 2013 by

Hello,

I've been trying to force maple to find a solution of this differential equation:

ode := -((D@@2)(y))(r)-2*y(r)/r+y(r) = (2-V(r))*u[0](r)

dsolve(ode, y(r));

gives

y(r) = r exp(-r) _C2 + (exp(r) + 2 exp(-r) Ei(1, -2 r) r) _C1 - 4             /  /  /             |1 | |    exp(-3 r) |- | |              |2 | |              \  \/                                  /   2    \             \

January 30 2013 by Maple

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Hi,

I'm new in Maple and i've a project to do. I've to find at what time is 90% of the steady-state concentration of C achieved. And the eq is

z'=k(1/2-z)(1/3-z), where k=0.3.

So i had worked in Mathematica before and i know that it would look something like that in there:

eqn1 = 0 == k (1/2 - z[t]) (1/3 - z[t])

DSolve[Evaluate[{eqn1}], z[t]].

But i have no idea how to find this 90%. I hope that someone will...

### Transpose a Multidimentional Array

January 28 2013 by Maple

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Hi,

I am trying to do somthing like this (I actually have a 5D Array, this is a simple example) (mathematica code)

a = { {{1,2,3},{4,5,6}},{{1,2,3},{4,5,6}},{{1,2,3},{4,5,6}}};

Transpose[a, {1,3,2}]

(* this {1,3,2} dictates what gets transposed e.g. {1,2,3}, would leave the Array the same, and the example transposes the last two dimentions*)

in maple.

After some research it seems it makes sense in maple to use an...

### maple 16 mathematica 9

December 03 2012 by

Mathematica 9 was just released Nov 28 which caused me, of course, to have a look to see what wolfram has done in way of comparing itself to maple.

Perhaps we can discuss, compare, debunk, clarify some of their claims or perhaps dismiss the results altogether

Here is one speed comparison chart I came across.  Is it relavent?  It shows Maple 16 as the worst performer.

### an integral of the hyperbolic cosine

November 22 2012 by

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Dear friends,

I was working on the integral of cosh(ax)/cosh(x) from zero to infinity with "a" being a rational number p/q where p<q and p-q being odd. I was quite shocked to discover that Maple 15 (X86 64 LINUX)cannot do this integral while Mathematica gets it right every time. I certainly hope this will be rectified soon.

For those who might be interested the calculation of the integral

### maple vs mathematica on wikiVS

November 14 2012 by

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Just happen to come accross this wikiVS page of Maple vs Mathematica.
http://www.wikivs.com/wiki/Maple_vs_Mathematica

I find it heavily biased towards Mathematica.

### Maple 16 Classic Worksheet Crashes A...

November 14 2012 by Maple 16

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Hi,

Recently, I upgraded from Maple 13 to Maple 16.  I have been using Maple for 20 years --- Maple V Release 2 (1992) through Maple 16 (2012), and I participated in beta testing Maple V Release 4, which developed what we now call the Classic Interface.  The Classic Interface is amazing --- it was better than Mathematica in 1994 and it is still better than Maple's Standard Interface.  The Standard Interface is missing features that were...

### Curve fitting and import data to fitting...

June 16 2012 by Maple 15

Hi, I have a set of data (see here:I-V_data.xls), voltage and current, which is measured from Keithley semiconductor analyzer, I want to load into Maple(version 15) and using formula as follow to fitting the curve, where I (i.e. current) appear at both right-hand-side and left-hand-side, V (i.e. voltage...

### Mathematica echoes MaplePrimes

June 14 2012 by Maple

See http://mathematica.stackexchange.com/ and compare with MaplePrimes.

### Why Maple can not solve this integral?!

June 02 2012 by Maple 16

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Hi friends
This is strange for me, but Maple could not solve the below integral. I tried with online version
of Mathematica and it solved for me. The solution is Hypergeometry function.
> f := ((1/2)*r+1/r)^(1/n);> int(f, r);
What is the problem?

Regards!

### Duplicating Mathematica's Locator

April 24 2012 by Maple

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How would I create an interactive component similar to the Locator functionality provided in Mathematica? For example, the command in Mathematica

Manipulate[
Graphics[Polygon[pt], PlotRange -> 2],
{{pt, {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {1, -1}}}, Locator}
]

creates five Locator objects stored in the variable pt. This example can be found in the

### problems about displaying the mathematics...

March 30 2012 by

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First,a Maple file is exported as the html file,but it took too much time to load the applet(com.maplesoft.applets.MathMLViewer)to display the mathematical symbols,such as the symbols of integral and differential,as shown in Figs.1 and 2.How to accelerate
Second,the problem will occur in the browsers of IE and firefox that the equation is incomplete display as shown in Figs3.Is there a method can handle the problem?
The last,using the...

### Who can help me in transform a simple...

February 02 2012 by Maple 15

HI experts,

can anyone here help mi in transform a Mathematica v8.0 sheet into maple v.15 ?

I am still maple novice.

Thanks a lot

My MMA file as ZIP:

general_two_compartm.zip

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