| Variables and the names of variables |
|---|
| Integer |
| A whole number. It may be zero or any positive or negative number. Name of integer variables has 1 to 6 letters or digits, the first of witch is I,J,K,L,M or N. (The limit of six letters or digits is typical but may be different in some versions.) Examples of acceptable names: I, KLM, MATRIX, L123, I6M2K, KATWA Example of unacceptable names: J123456 Too many characters. ABC Does not begins with the correct character. 5M Does not begin with the correct character. J_ABC Contains a character other than a letter or digit. |
| Real |
| Real numbers are presented in floating point form. Name of integer variables has 1 to 6 letters or digits, the first of witch is a letter but not I,J,K,L,M or N. Examples of acceptable names: AVAR, R51TX, FRONT, G, F0009, SVECT, AMATRX Example of unacceptable names: A123456 Contains too many characters. 8BOX Does not begins with a letter. KJL1 Does not begin with the correct letter. *BCD Contains a character other than a letter or a digit. |