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Using a Cyrillic font in the Combo Box component gives an runtime error when saving workbook file (*.maple file extension).

cyr_wb_save_error.zip

Select the second item in Combo Box component and press save button.

 

Hello!

Using a geometry package, I ran into a problem: the area() function returns the wrong value for square elements.

What am I doing wrong?

_local(D)

with(geometry)

b := 2

h := 1

square(sq1, [point(A, 0, 0), point(B, b, 0), point(C, b, h), point(D, 0, h)])

evalf(area(sq1))

2.500000000

(1)

draw([sq1, A(printtext = true), B(printtext = true), C(printtext = true), D(printtext = true)])

 

triangle(tr1, [point(A, 0, 0), point(B, b, 0), point(C, b, h)])

evalf(area(tr1))

1.

(2)

draw([tr1, A(printtext = true), B(printtext = true), C(printtext = true)])

 

NULLNULL

NULL

b := .1

h := 1

square(sq2, [point(A, 0, 0), point(B, b, 0), point(C, b, h), point(D, 0, h)])

evalf(area(sq2))

.5050000000

(3)

draw([sq2, A(printtext = true), B(printtext = true), C(printtext = true), D(printtext = true)])

 

triangle(tr2, [point(A, 0, 0), point(B, b, 0), point(C, b, h)])

evalf(area(tr2))

0.5000000000e-1

(4)

draw([tr2, A(printtext = true), B(printtext = true), C(printtext = true)])

 

``


 

Download GeometryAreaTest.mw

I have a problem using variables values that were read form Maple library file (*.mla) with units.

For example:

In the first file called "calculations.mw" I calculate a variable with units and save value to "lib1.mla" file

 

A__1 := Units:-Standard:-`*`(2, Unit('m'))

2*Units:-Unit('m')

(1)

A1 := Units:-Standard:-Unit('m')

Units:-Unit('m')

(2)

savelib('A__1', 'A1', cat(interface(worksheetdir), "\\lib1.mla"))

``

 

 

Download calculations.mw

 

 

In the second file called "document.mw" I can read the value of a variable, but can't use it in expressions:

 

libname := cat(interface(worksheetdir))

"D:\TEMP\MTest"

(1)

A__1

2*Units:-Unit('m')

(2)

A__1

2*Units:-Unit('m')

(3)

2*A__1

Error, (in Units:-Standard:-*) invalid subscript selector

 

A1

Units:-Unit('m')

(4)

A1

Units:-Unit('m')

(5)

2*A1

Error, (in Units:-Standard:-*) invalid subscript selector

 

NULL

 

Download document.mw

 

Where I made a mistake? 

Hello!

It seems there's some problems with spaces in the name of equation

 

As you can see the 'SOLVE' command can't substitute variable 'b' in my example, if 'b' variable wasn't defined BEFORE the equation with spaces in its name....

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