๐Ÿ”ฌ

Scientific Calculator

Full-featured scientific calculator: trigonometry, logarithms, powers, roots, factorials, and memory. Supports DEG/RAD modes.

MATHEMATICS

A complete online scientific calculator for advanced mathematical computations.

Supports trigonometry (sin, cos, tan) in degree/radian mode, logarithms (log, ln, log2), powers, roots, factorials, constants (pi and e), and memory functions (MC/MR/M+/M-). History of the last 10 calculations.

Scientific Calculator

Kalkulator ilmiah lengkap dengan fungsi trigonometri, logaritma, pangkat, akar, faktorial, memori, dan riwayat perhitungan.

DEGRAD
0
PANDUAN SINGKAT
DEG/RAD โ€” mode sudut
INV โ€” fungsi invers (asin, acos, atan)
x^n โ€” ketik basis, tekan x^n, lalu eksponen
ANS โ€” gunakan hasil terakhir
MC/MR/M+/M- โ€” memori
Riwayat โ€” klik untuk menggunakan hasil
n! โ€” faktorial (bilangan bulat positif)
( ) โ€” kelompokkan operasi

Calculator information

How to use this calculator

  1. Choose the angle mode: degrees (DEG) or radians (RAD) for trigonometric functions.
  2. Use function keys (sin, cos, tan, log, ln, sqrt, x^2, x^y) for standard operations.
  3. For constants, press pi for 3.14159... or e for the natural base 2.71828...
  4. Use the memory keys (M+, M-, MR, MC) to store and recall intermediate results.
  5. Press = to evaluate; the result is added to the history of the 10 most recent calculations.
  6. Use AC for a full reset, or DEL to delete the last character.

Advanced math functions

Trigonometry: sin(theta), cos(theta), tan(theta); Logarithm: log_a(x) = ln(x)/ln(a); Power: x^y = e^(y*ln(x))
  • theta: angle in radians (pi rad = 180 deg)
  • ln: natural logarithm, base e
  • log: logarithm base 10
  • log2: logarithm base 2
  • x^y: x raised to the power y
  • n!: factorial = n x (n-1) x ... x 1

Angle conversion: rad = deg x pi/180; deg = rad x 180/pi. Basic trig identity: sin^2(theta) + cos^2(theta) = 1.

Worked example: Computing the elevation angle from height and distance

Given:
  • Pole height: 15 meters
  • Horizontal distance: 25 meters
  • Find the elevation angle theta
Steps:
  1. Use arctan: theta = arctan(height / distance) = arctan(15/25)
  2. Make sure DEG mode is active
  3. Compute: 15 / 25 = 0.6
  4. arctan(0.6) = 30.964 deg
  5. Round: ~ 30.96 deg

Result: The elevation angle from the observation point to the top of the pole is 30.96 degrees.

Frequently asked questions

What is the difference between DEG and RAD on a scientific calculator?
DEG (degrees) is the everyday angle unit where one full turn = 360 degrees. RAD (radians) is the mathematical unit where one full turn = 2*pi ~ 6.283 rad. Many advanced math and physics formulas (especially calculus) use radians by default. Make sure the calculator mode matches before computing sin, cos, or tan.
What is the difference between log and ln?
log (sometimes log10) is the base-10 logarithm, e.g., log(1000) = 3. ln is the natural logarithm with base e ~ 2.71828, widely used in calculus, statistics, and biology (exponential growth). Relationship: log(x) = ln(x)/ln(10) ~ ln(x)/2.303. For other bases, use log_a(x) = ln(x)/ln(a).
What is a factorial and when is it used?
The factorial n! is the product of all positive integers up to n, e.g., 5! = 5 x 4 x 3 x 2 x 1 = 120. By definition 0! = 1. Factorials are used in combinatorics (combinations, permutations), Taylor series, and probability. Large values grow extremely quickly: 20! ~ 2.4 x 10^18, so calculators typically cap input around ~170.
How do I compute an nth root?
The nth root of x can be computed as x^(1/n). Example, the cube root of 27: 27^(1/3) = 3. On a scientific calculator, use the x^y key with a fractional exponent (1/3 = 0.3333...) or the dedicated nth-root key if available. Square roots have a dedicated sqrt key.
What do the M+, M-, MR, MC memory functions do?
M+ adds the current value to memory. M- subtracts the value from memory. MR (Memory Recall) brings the stored value back to the display. MC (Memory Clear) wipes the memory. Useful for multi-step calculations, e.g., summing several subtotals without writing them down. Some calculators offer multiple memory slots (A, B, C, M).

Last updated: May 11, 2026

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