MaplePrimes - Questions and Posts tagged with input

button in maplet

allen — Mon, 23 Apr 2012 17:39:37 Z

what should i do to get display buttons in maplet as an input in TextField? so that everytime i click on a button in maplet, the value of that button will show up in TextField as an input, such as if i click on a Button("1") , the number 1 will show up in the TextField. thanks in advance.

How do I implement the "system" command on Windows

Fizzle — Sun, 18 Mar 2012 15:32:37 Z

Hi everyone!

Please can some one show me how to implement the "system" command on Maple 13-Windows OS to include the specicfication of the input and output file path? I would appreciate a useful response. Thank you...

Error plotting Contour Plots

Chrissieh18 — Mon, 20 Feb 2012 16:44:28 Z

I inputted the folllowing into Maple.

with(plots):
contourplot(x^2*y/(x^4+y^2),x=-1/2..1/2,numpoints=60^2,color=blue);

However it is giving me this error:

Error, (in plot/iplot2d/expression) bad range arguments x = -1/2 .. 1/2, numpoints = 3600

I don't understnad why.

My lecturer has completed this graph and I literally just copied what she had written on our worksheet in order to acheive the same...

mask an input string

Christopher2222 — Wed, 15 Feb 2012 14:56:02 Z

How do I mask an input string?

That is when queried for an input, as the characters are typed they are presented differently.

hotkeys for MAPLE's commands

Denis — Tue, 14 Feb 2012 10:53:15 Z

I tried to find the list of hotkeys for Maple's commands but I found nothing.

Is there any hotkeys?

for example, It would be useful to have hotkeys for 'execute ALL toolbar', for Greek letters.

In MathCAD you write Latin analog + 'ctrl + G' and the programm returns Greek letter. for example to achieve 'alpha' you have to input a + 'ctrl+G'.

Calculating a set of input

serena88 — Mon, 06 Feb 2012 17:49:43 Z

Hi, I have a formula with variable unknowns, lets say p,q,r.

How do I get the answer giving me the output for different combination of input that I'm inserting?

For example : f(p,q,r):=(34p^9-7q)/r

Calculate when (p=2,q=8,r=7) and (p=3,q=0,r=3) and (p=4,q=1,r=9) and so on...

Please advice. Many thanks

Change to 1-D math (math input) with command in initialisation file

Petra Heijnen — Mon, 30 Jan 2012 14:24:28 Z

I've made exam questions for students that they have to answer by doing some calculations in Maple.

I would like to let them copy the commands they used to a Maple TA text field.

However, the standard worksheet in our computer lab uses 2-D math. Copying this 2-D math to Maple TA works fine with "paste as plain text", but copying 1-D math also works with ctrl-v in Maple TA, which is more convenient for students under stress.

Since I am not allowed change...

Hiding input in only parts of the worksheet?

Dorn — Wed, 04 Jan 2012 16:39:40 Z

I'm acquainted with using View - show/hide contents - and unchecking input to hide the input in a worksheet. My problem is that I would like to do this only some of the time. I've tried selecting just the text where I want to hide the input but the menu action seems to apply to the whole worksheet. This is in Maple 14. Is there someway to hide the input some of the time but leave it visible the rest of the time?

Regarding Units

Elbaek89 — Mon, 28 Nov 2011 16:14:14 Z

Hi there

I have, for a while, been trying to find a way to force maple to display the unit im inputting.

Im studying to be an engineer, and for an example the unit i often would like displayed is kilonewtons per square metre (kN/m2).

Once i hit enter, maple converts it to Pa, which isnt really usable for me ...

The question is, is there any way to stop maple from doing the conversion in output......

Find the upper bound error using end point rule

Red Horse — Wed, 12 Oct 2011 18:52:10 Z

Hey guys,

I have the function f(x) =(sin(x) + 1)/(x^2 + 1) where x =-Pi/2 and 3Pi/2

1) I first set up an intgral for the function:

Error, invalid input

Jorgenecochea — Tue, 04 Oct 2011 16:27:52 Z

Good Morning.

I have a problem

i have two functions

> xcir(t):=0.3 + 0.15*sin(t):
> ycir(t):= -0.3-0.15*cos(t):

and i suppose that i have a problem in the following equation

> qd2 := ((arctan(-ycir(t)/xcir(t))-arctan(.45*sin(qd3(t))/(.45+.45*cos(qd3(t)))))*180)/(3.1416);
> qd3 := 180*arccos((xcir(t)*xcir(t)+ycir(t)*ycir(t)-.45*(2*.45))/(.45*(2*.45)))/(3.1416);

Echo input to output

andrewfortune — Thu, 14 Jul 2011 12:31:12 Z

A simple question, the answer of which is eluding me. How do you echo the input to the output without performing any processing (e.g. solving, simplifying, factorizing etc.) whatsoever?

Input Display Drop-down List

andrewfortune — Wed, 13 Jul 2011 09:47:59 Z

Maple 13 here.

The help documentation talks about an "Input Display Drop-down List", likewise for Output. What "Input Display Drop-down List" ? ... I can't see this anywhere.

How read from standard input in pipe?

Gary Palmer — Sat, 02 Jul 2011 23:33:56 Z

This is a question about how to read standard input in UNIX (bash).

I would like to write code in an easy to use editor (BBEdit) and use maple to take input from what other systems would refer to as STDIN or $stdin. The motivation for using an external text editor is to reduce the memory burden on the Maple editor in a program that rotates hundreds, hopefully thousands, of Maple points and other objects (See: http://www.mapleprimes.com/questions/123184...

Input/Output Inconsistencies

andrewfortune — Thu, 30 Jun 2011 19:31:25 Z

Hi,

Was wondering why I am getting such a variety of outputs when I input what is essentially the same expression each time ?

See attached screenshot.

thanks,
Andrew