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Error, missing operation

 

Description

See Also

Description

For 2-D Math

 

In general, the best practice is to enter a multiplication symbol (*) for multiplication in any calculation.  In some cases, you can instead insert a space character between two quantities to multiply them.  This is called implicit multiplication.

 

For a product containing integers and decimals, implicit multiplication can be used only if the number occurs in the left-most position in the product. For products of numbers, use explicit multiplication (), entered by using the asterisk (*) symbol on your keyboard. However, you can use implicit multiplication for products containing fractions.

 

Example 1

Valid

2 x = 2x 

Not valid

23

Error, missing operation

To fix the error, insert a multiplication symbol between the two quantities instead of a space.

Valid

23 = 6 

 

Example 2

Not valid

2 .5

Error, missing operation

2.3 5.3333333333

Error, missing operation

To fix the error, insert a multiplication symbol between the two quantities instead of a space.

Valid

2.5 = 1.0

2.35.3333333333 = 12.26666667

Valid

23 53 = 109 

 

All of the errors shown in these examples are due to the rule that a number cannot appear as the right-hand operand of an implicit multiplication operation. In such cases, use of explicit multiplication (*) can avoid the error.  For more information, see 2DMathDetails.

Tip: Troubleshooting your mathematics is easier if you use explicit multiplication symbols.

See Also

2Dmath, 2DMathDetails, floating-point numbers