Simple. Powerful. Easy to use. jCalc is a scientific calculator that makes sense.

Features

Enter fractions and decimals:
• [1] [.] [2] = 1.2
• [1] [n/d] [2] = 1/2
• [1] [n/d] [2] [Nn/d] [3] = 1_2/3

Answer format:
• 1–16 decimal places
• Irrational, rational, decimal and scientific results
• Trigonometric functions in radians, degrees and gradians

Convert answer:
• [Ab/c] ⟺ [a/b] ⟺ [a.b] ⟺ [a.b×10^c]

Buttons:
• [del]: Delete last entry
• [C]: Clear current expression
• [AC]: Hold down [C] to clear all entries
• [sci]: Scientific calculator
• [2nd]: Additional functions

Number buttons:
• [ans] Memory of the previous answer
• Automatic parenthesis
• Percent button
• Scientific notation
• π button

Function buttons:
• Roots
• Powers and exponents
• Logarithms and logarithms base x
• Trigonometric functions
• [hyp]: Hyperbolic functions
• [prob]: Permutations, combinations, and factorials

Happy calculating!