Support in the processing of our modules
When editing our workshops there are a few typical sources of errors, which are listed here. If you receive an error message, this may be due to the notation required by the Julia programming language.
|Typical input error||Wrong input||Correct input|
|Comma as decimal separator||1,5||1.5|
|Wrong arithmetic symbol for multiplication||2 x 4||2 * 4|
|Use of sine, cosine and tangent in radians instead of degrees||sin(), cos(), tan()||sind(), cosd(), tand()|
|Incorrect call of arcussine, arcuscosine and arcustangent (degree measure)||sin^(-1), cos^(-1), tan^(-1)||asind(), acosd(), atand()|
|Enter the number π as a character||π||pi|
|Copy formulas from text||sin(440-2π-t)||sin(440*2*pi*t)|
|Column vectors without a semicolon between entries||[1 2 3 4]||[1; 2; 3; 4]|
|Systems of equations or matrices without a semicolon at the end of each line||
[ 1 2 3
[ 1 2 3;
|Copying the numerical values instead of using the variables||1.1||s (variable in which this value is stored)|
|Wrong spelling of variables (esp. upper and lower case)||Transmittertime,
|Inputs of words (strings), e.g.
to complete sentences, without
double quotation marks
“. . . "
|ˆ is sometimes not accepted when entered||ˆ without space bar||After entering ˆ, press the
press the space bar.
|Played sounds cannot be heard||Using the Firefox
|Use another browser (e.g. Chrome)|
|First code field is not executed||Execute first code field on each
worksheet, before subsequent code fields are processed.
|Kernel down after inactivity (especially when editing is paused for a longer period of time)||Top right says "No Kernel"||Click on "No Kernel" and select Julia|
|Markdown cell (text cell of the worksheets)
were double clicked.
|Editing mode is open||Execute text cell by clicking on the Run button|
|Input was entered correctly
but not recognized as correct
|Restart the kernel of the worksheet
and execut the complete worksheet