Calculations and Namespaces Examples in Zolt

Basic Arithmetic

Simple mathematical operations:

• 15 # Addition: 15
• 12 # Subtraction: 12
• 12 # Multiplication: 12
• 5 # Division: 5
• 1 # Modulo: 1

Operator Precedence

Operators follow standard mathematical precedence:

• 13 # 13 (multiplication first)
• 25 # 25 (parentheses override)
• 512 # 512 (right associative: 2⁽³²⁾)

Power Operator

Using the ^ operator:

• 256 # 256
• 100 # 100
• 27 # 27
• 1 # 1

Math Namespace

Rounding Functions

• 3 # 3
• 4 # 4
• 4 # 4
• 3 # 3

Absolute Value

• 5 # 5
• 10 # 10
• 3.14 # 3.14

Min/Max

• 5 # 5
• 10 # 10
• -10 # -10

Power and Square Root

• 256 # 256
• 1000 # 1000
• 4 # 4
• 1.4142135624 # 1.41...

List Namespace

List Operations

• 5 # 5
• 10 # 10
• 50 # 50

Aggregation

• 150 # 150
• 30 # 30
• 5 # 5 (alias of length)

String Namespace

Case Conversion

• HELLO # "HELLO"
• hello # "hello"

String Operations

• 4 # 4
• text # "text"
• herro # "herro"

String Split

• ["apple","banana","cherry"] # ["apple", "banana", "cherry"]

Practical Examples

Shopping Cart

• Subtotal: 89.97 # 89,97
• Tax: 7.1976 # 7,1976
• Total: 97.1676 # 97,1676

Statistics

• Average: 88 # 88
• Highest: 95 # 95
• Lowest: 78 # 78
• Sum: 438 # 438

Temperature Conversion

• Fahrenheit: 77°F # 77
• Kelvin: 298.15K # 298,15

Financial Calculations

• Simple Interest: 150 # 150
• Total Amount: 1150 # 1150

Compound Interest

• Amount: 1161.4722313335 # 1161.47

Percentage Calculations

• Percentage: 30% # 30%
• Rounded: 30% # 30%

Grade Calculation

• Final Grade: 85 # 85

Area Calculations

• Circle Area: 78.53975 # 78.54
• Circumference: 31.4159 # 31.42

Rectangle

• Area: 50 # 50
• Perimeter: 30 # 30

Budget Planning

• Total Expenses: 2700 # 2700
• Remaining: 2300 # 2300
• Savings Rate: 46% # 46%

Data Analysis

• Total Sales: 8000 # 8000
• Average: 1600 # 1600
• Growth: 62.5% # 62.5%

Scientific Calculations

• Kinetic Energy: 12500J # 12500J
• Work Done: 500J # 500J

Complex Examples

Invoice Calculation

• Widget: 5 × 19.99 = 99.95
• Gadget: 3 × 29.99 = 89.97
• Tool: 2 × 49.99 = 99.98
• Subtotal: 289.9 # 289.90
• Tax (8%): 23.192 # 23.19
• Total: 313.092 # 313.09

Loan Calculator

• Monthly Payment: 1013.3706196518 # 1013.37

BMI Calculator

• BMI: 22.8571428571 # 22.86
• Category:

Normal weight # Normal weight

Use Cases

Performance Metrics

• Total Time: 2.5 # 2.5
• Server: 12% # 12%
• Render: 88% # 88%

Time Calculations

• Work Hours: 7 # 7

Discount Calculator

• Discount: 20 # 20
• Sale Price: 80 # 80

Tip Calculator

• Tip: 15.39 # 15.39
• Total: 100.89 # 100.89

Unit Conversion

• Miles: 62.1371 # 62.14
• Meters: 100000 # 100000
• Feet: 328084 # 328084

Currency Conversion

• Euros: 92 # 92

Scientific Notation

• 123000 # 123000
• 0.00123 # 0.00123
• 300 # 300

Best Practices

Precision

• 3.14 # 3.14

Validation

Cannot divide by zero

Readability

$subtotal = $quantity * $unit_price
$total = $subtotal * (1 + $tax_rate)

Better than:

$total = $quantity * $unit_price * (1 + $tax_rate) }}

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