TScalc Scientific Calculator

Type expressions as you read them and see the result as you type. Past calculations stay on screen; tap one to edit and recalculate. No ads, no tracking.

TScalc is a scientific calculator where you type the whole expression, just as you would write it. It is a rebuilt iPhone version of a calculator the developer originally made for Pocket PC in 2001.

TYPE EXPRESSIONS AS YOU READ THEM Enter something like "sqrt(2) + sin(30)" in natural order. While you type, the result appears as soon as the expression can be calculated. Implied multiplication such as 2pi or 3(4+1) works, and a missing closing parenthesis at the end is closed for you.

EDIT PAST CALCULATIONS Your calculations and answers stay on screen. Tap one to bring the expression back, change a single number, and calculate again - no retyping. The latest 100 calculations are kept and can also be opened as a list.

FUNCTIONS

• Addition, subtraction, multiplication, division, parentheses
• sin, cos, tan with DEG / RAD switching
• log, ln, e to the power of x
• Square root, square, power, any root, reciprocal
• Pi, scientific notation (times ten to the power)
• Ans (previous answer)

CLEAR, ACCURATE RESULTS

• 0.1 + 0.2 shows 0.3, and sin 180 degrees shows 0 - no floating-point noise
• Division by zero, square roots of negative numbers and similar cases show the reason instead of a strange number
• Thousands separators make long numbers easy to read

MORE

• Tap the answer to copy it
• Tap the expression to move the cursor
• Light haptic feedback on every key
• Built-in help screen
• Dark design that is easy on the eyes
• Japanese and English

PRIVACY TScalc never connects to the network and collects no data. There are no ads. Your calculation history is stored only on your iPhone.