Question about Texas Instruments TI-89 Calculator
An implied multiplication happens when you put two names of variables one after the other without actually entering the multiplication sign (* or cross). The calculator is interpreting this as a multiplication and is telling you it is wrong to do so. I suspect this can happen if you use a variable name made up of two or more letters without first defining the variable. If you use a variable called ax or xa without defining it before it is called, the calculator interprets that as variable a times variable x.
Posted on Oct 20, 2013
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Posted on Jan 02, 2017
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