## 180 Reputation

18 years, 62 days

## Problem with the use of GetConstant...

Maple 2019

This is perhaps a stupid question, when I use the ScientificConstant package and call a constant e.g. R this works smoothly. But when I assign the value to a variable to use it in a calculation Maple complains about the units. However, if I assign the constant manually (without using GetConstant) Maple has no issues in solving. Is there a trick to use such a constant in a calculation? I have attached a worksheet to illustrate my question better. Thank you in advance for helping me out.GetConstantQuestion.mw

## Why does this proc does not provide an a...

Maple 2019

I am trying to start writing small procedures in Maple. In the attached document I do not get an answer and I do not understand why. For clarity I have also added a working construct from another program so anyone willing to help me out can better understand what I am after.

CDI_T_cor.mw

## Why is this elementwise formula given th...

Maple 2019

First of all I would like to wish everyone a happy, prosperous and especially healthy 2022!

I do not understand why my second formula in the attached sheet gives the wrong answers. I have added the correct answers in the vector "Correct". I still find it a bit cumbersome to work elementwise in Maple but that is most likely because still being relatively new to the program. Any help is more than appreciated

## Problem with units when multiplying 2 ve...

Maple 2019

In the past I worked with mathcad where it was very easy to work with units. Now I try to switch to Maple but I am still struggling when I want to implement units. In the simple attached worksheet I try to multiply vector a in [m] with vector b in [cm]. I get an answer in [m] but I cannot convert the answer to another unit. Right clicking allows me to change the unit e.g. to mm but nothing happens in the worksheet. When I use convert, the units are expressed numerical in cm but the vector still shows m. My apologies in advance for this simple questions but I find no way to solve my issue.

CollabExample.mw

## Can I change RK45 into RK4?...

Maple 2019

Dear All, If I understood well dsolve uses the RK45 method to solve an ODE. I would like to compare the results of tha attached worksheet with the results of another software that uses RK4 as a standard. Can I adapt my worksheet to use RK4 and how do you do that? Thanks in advance for your willingness to help me out.QMP_Nov21.mw

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