Scientific Calculator for Chemists
About this calculator
Type your expression directly onto the input line or copy and paste an expression from other programs. When you finish entering your expression, press ENTER or click [=] button.
Rules for typing in calculations
In trigonometric calculations, angles are interpreted as degrees (default) or radians, depending on mode setting (Deg or Rad mode).
Results can be rounded to a user-specified number of decimal places (max 15-digit). This calculator can also round the mantissa under scientific notation. For example, numbers are rounded to 4 decimal places like this: decimal number 3.5269, integer number 35269.0000 and scientific number 3.5269 e-31.
To perform basic mathematical operations use the following arithmetic operators: addition (+), subtraction / minus sign (-), multiplication (*) and division (/)
Enter a positive number by pressing the appropriate digit keys (or buttons) and, if necessary, the decimal point key [.]. Full stops and commas can both be used as the decimal point in numbers (3,2 + 4.3 = 7.5).
Negative numbers are obtained by simple putting the minus sign (-) before the number.
Use 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 [E] button or just type lower e and type exponent as the positive or negative number.
Operations with the same precedence are performed from left to right, with operations enclosed in brackets performed first. If brackets are nested, the operations enclosed in the innermost set of brackets are performed first. All types of brackets are correct, for example 25.3/(K3[Fe(CN)6]).
Clicking the Constants button causes a physical constants table
to pop up.
2+5-3.25 = 10.25
Scientific Calculator for Chemists is Copyright © 1998-2001 Eni