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## Scientific calculator for chemists with notebookScientific calculator for chemists with notebook is a fully functioning JavaScript calculator. This calculator can be used as common scientific calculator (sin, cos, log, power, root, memory), but it also includes a molecular weight calculator and the tables with various physical and chemical constants. The calculator contains a list with task history, storing all the recent inputs and results. Scientific calculator displays the numbers rounded to a user-specified number of decimal places. ## Entering expressionType your expression directly onto the input line or copy and paste an expression from another programs. When you finish entering your expression, pres ## Rules for typing expression- Spaces are irrelevant, for example 54 + 3*2 is equal 54+3*2
- If you press a function button without argument, the last result becomes a function argument
- If the first character in the expression is a math operator (+, *, /) then the last result is put in before the math operator
## Angle measureIn trigonometric calculations, angles are interpreted as radians (default) or degrees, depending on mode setting (Deg or Rad mode). ## Number formatsResults can be rounded to a user-specified number of decimal places (max 15-digit). This calculator can round mantissa under scientific notation, also. For example, numbers rounded to a 4 digit like this: decimal number 3.5269, integer number 35269.0000 and scientific number 3.5269 e-31. ## Arithmetic operatorsTo perform basic mathematical operations use the following arithmetic operators: addition ( ## Positive numbersEnter a positive number by pressing the appropriate digit keys (or buttons) and, if necessary, the decimal point key [ ## Negative numbersNegative numbers are obtained by simple putting the minus sign ( ## Scientific notationUse standard calculator notation for scientific notation, for example 1e-5 is 0.00001; 1e+3 or 1e3 is 1000. Enter the mantissa as the positive or negative number, and then click [ ## ParenthesesOperations with the same precedence are performed from left to right, with operations enclosed in parentheses performed first. If parentheses are nested, the operations enclosed in the innermost set of parentheses are performed first. All types of parentheses are correct, for example 25.3/(K3[Fe(CN)6]). ## Chemical formulae
- The element symbols in chemical formula must be properly capitalized.
- For indicating hydration you must use a
**+**sign (CuSO4+5*H2O). - It is correct to type the leading number before formula without parentheses: 3*CO2 is equal 3*(CO2)
## Physical constants
Clicking the ## Examples:2+5-3.25 = 10.25 |
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