Mathematics verification expression- Mvx

- Instruction: Mvx#

- Parameter: # numeric identifier of expression

- Return: true if the index is inside the expression

- Description:

Returns true if the character is inside the expression marked by an identifier. This instruction must be used only in text which has been previously marked with the instruction "Mvw#". The identifier is always an integer.

- Examples:

Text string: 5

Braille string: 156

Condition: Mvx100

Description: If the character "5" is inside the expression marked with the identifier "100" it is transcribed with the cell "156".