21-Topaz II

Solved

problems with the conditional operator

Forum|Forum|6 years ago
December 2, 2019
3 replies
4247 views

Hello everyone,
why the program, reported below, does not work? There seem to be problems with conditional operators. In fact the program on the right, where no conditional operators appear, gives the required result.
I sincerely thank those who will find the error and all those who will try to solve it.

Attached is the worksheet.

test 3.jpg

Programming

Best answer by -MFra-

Hello everyone!
I solved the problem this way:

test 3+.gif

test 3++.gif

23-Emerald IV

The if() function and the if construct don't always work symbolically. The step function 'Phi()' may be a symbolic alternative:

Success!
Luc

Author

21-Topaz II

In this case, using the unit step is a real nonsense!

23-Emerald IV

You want something to work.... or not?

Success!
Luc

1_LM_20191203_Conditionally.zip

23-Emerald IV

Incidentally, those simple theta's at the end of many of your if-blocks do not actually do something.

It's the final theta, at the end of the program that produces the result.

If you want your program to produce the result of the first if statement that is TRUE, you can use:

return theta

Where return is the programming construct, from the programming panel...

Success!
Luc

Author

21-Topaz II

... but it still doesn't work .....

Author

21-Topaz II

The evaluation of the same logical equation in the comparisons takes on opposite values as seen in the photo, so nothing works.

test 4.jpg

AuthorAnswer

21-Topaz II

Hello everyone!
I solved the problem this way:

test 3+.gif

test 3++.gif