NCalc101 - Variables

Variables allow you to store values and reuse them in your expressions. This makes calculations more flexible and your work easier to manage.

Defining Variables

1. Type a variable assignment in the input box, such as x = 10.
2. Press Enter or click Evaluate to save the variable.
3. You can now use x in other expressions, e.g., x * 5 will evaluate to 50.

Using Variables in Expressions

• Simply reference the variable name in your expression: y = x + 3
• Variables can be used with functions: sqrt(x)
• You can update a variable by assigning a new value: x = 20

Variable Naming Rules

• Variable names must start with a letter and can include letters, numbers, and underscores (e.g., total_1).
• Variable names are case-sensitive: total and Total are different.

Examples

• a = 5
• b = a * 2
• result = b + 10
• sqrt(result)

Tips

• Use variables to break complex calculations into smaller, manageable steps.
• Clear or update variables as needed to keep your workspace organized.
• Check the Output and Results page to see the current values of your variables.

Variables make your calculations more powerful and organized in NCalc101!