Brother International WP7550JPLUS Owner's Manual - English - Page 104
Order, Calculation, Formula
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Please remember the following rules about operands: • A cell address can be written using either upper or lower case fetters. When a cell address has to come first in a formula, it must be preceded with a + or - sign, or by a left parenthesis. Otherwise, the formula will be considered alphanumeric data and will not be calculated. Therefore, instead of Al+A2, enter +Al +A2, (AI +A2), or (A1)+A2. • If a cell that is referred to while doing a calculation contains alphanumeric data, the formula is invalid, and ERROR will be displayed. An empty cell, however, is valid and assumed to contain zero. Order of Calculation of a Formula The calculation of a formula is performed in the order of precedence of the operators: 1. The 4- or - sign is applied to the operand directly to the sign's right. 2. Exponential calculations are performed. 3. Multiplication and division calculations are performed. 4. Addition and subtraction calculations are performed. Example: 2#3*4-2 8*4-2 32-2 30 When two or more operators have the same order of precedence (multiplication and divisions, or addition and subtraction), calculation is carried out from left to right. Example: 1+3+4-2 2#3#2 4+4-2 8#2 8-2 64 6 To modify the order of calculation, you may use pairs of parentheses. The formula in parentheses is calculated first. Example: 1+3*4 (1+3)*4 1+12 4*4 13 16 Parentheses can contain other pairs of parentheses. Calculation proceeds from the innermost pair of parentheses. Example: ((3*4+1)*4+3)*4-12 (13*4+3)*4-12 55*4-12 220-12 208 One pair of parentheses can contain up to 5 other pairs. Using more than 5 pairs of parentheses in one pair of parentheses makes the formula invalid. The formula will also be invalid it parentheses do not come in pairs. Parentheses can be used for the simple purpose of making the data numeric. (A1+A2) or (A1)+A2 can be used instead of +Al +A2. Spreadsheet 96