OmniTools

Scientific & Fraction Calculator

Full scientific math keypad, fraction simplification, mixed numbers, and history.

Basis: IEEE 754 double-precision floating point with standard operator precedence·2026-08-28 verified·Editorial policy

Before you rely on this

Calculations use JavaScript double-precision floating point (IEEE 754), so 0.1 + 0.2 does not land exactly on 0.3 and small errors remain below the decimal point. Errors accumulate with very large or small magnitudes and with repeated trigonometric operations.

Tool Overview & Key Purpose

Advanced scientific and fraction calculator supporting trigonometry, logarithms, roots, exponents, and fraction simplification.

Step-by-Step Usage Instructions

1STEP 1

Use the keypad to enter expression terms and functions (sin, cos, log, ^, √).

2STEP 2

Toggle angle mode between Degrees (DEG) and Radians (RAD).

3STEP 3

Enter fractions to view exact reduced fractions and decimal equivalents.

4STEP 4

Access calculation history to reuse previous results.

Real-World Scenarios & Practical Cases

3 Practical CasesScenario #1

Trigonometric Distance Calculation

Calculating height on a 30-degree incline over 10m distance: h = 10 × sin(30°) = 5.0m.

Ensure correct DEG or RAD mode setting.Scenario #2

Exact Fraction Arithmetic & Simplification

Adding 3/8 + 5/12 simplifies to 19/24 (decimal 0.79166...).

Maintains exact fractional precision.Scenario #3

Logarithmic Signal Gain Calculation

Compute log10(100) = 2.0 or natural exponent e^2.5 instantly.

Essential for engineering coursework.Operator precedence and precisionHigh-precision mathematical parsing engine for scientific and fraction expressions.

Pro Tips & Key Considerations

Always verify DEG vs RAD mode before computing trigonometric functions.Use parentheses () generously to maintain proper arithmetic operator precedence.

Frequently Asked Questions (FAQ)

Sources & References

MDN Web Docs — JavaScript Math Object MDN Web Docs — JavaScript Number Precision

Basis: IEEE 754 double-precision floating point with standard operator precedence · 2026-08-28 verified