Scientific Calculator

DreamOnline Limited

About this app

Scientific Calculator is a complete, exam-style scientific calculator for your phone — 14 built-in calculator apps, a natural textbook display, and step-by-step explanations that show you how the answer was reached, not just the answer.

Everything runs on your device. No ads. No sign-up. No internet needed.

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STEP-BY-STEP MODE
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Switch to Step-by-Step and every press of EXE reveals one more step of the working. Perfect for homework, revision and understanding where a mistake crept in. Available across Calculate, Statistics, Equation, Inequality, Distribution, Complex, Matrix, Vector, Ratio, Base-N and Table.

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14 CALCULATOR APPS
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• Calculate — full scientific keypad with fractions, powers, roots, logs, trig and inverse trig, hyperbolics, derivatives (d/dx), integrals, summation and product, permutations and combinations, GCD/LCM, Pol/Rec conversion and more
• Statistics — 1- and 2-variable stats plus linear, quadratic, logarithmic, exponential and power regression
• Table — generate value tables for f(x) and g(x)
• Equation — simultaneous linear systems and polynomial equations
• Inequality — solve polynomial inequalities with the solution set
• Distribution — normal, binomial and Poisson probability
• Complex — complex arithmetic in rectangular a+bi or polar r∠θ form
• Matrix — determinants, inverses, transpose and matrix arithmetic
• Vector — dot product, cross product, angle and magnitude
• Spreadsheet — a compact grid with formulas
• Ratio — solve proportions instantly
• Math Box — dice roll, coin toss and random-number tools
• Base-N — binary, octal, decimal and hexadecimal with logic operators
• Big Number — arithmetic far beyond the usual digit limit

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NATURAL TEXTBOOK DISPLAY
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Type maths the way it's written. Fractions stack, roots sit under the radical, exponents ride high — exactly as they appear on paper. Toggle S⇔D to flip any answer between an exact form (fractions, √, π) and a decimal.

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FLOATING CALCULATOR
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Keep the calculator on top of any other app in a movable, resizable window. Work through a PDF, a spreadsheet or a lecture video without ever switching screens.

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SET IT UP YOUR WAY
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• Angle unit: Degree, Radian or Gradian
• Number format: Norm, Fix 0–9, Sci 1–10, plus engineering notation
• Input/Output: MathI/MathO or MathI/DecimalO
• Fraction results as improper fractions or mixed numbers
• Complex results in rectangular or polar form
• Digit separator and decimal mark (dot or comma)
• Key-tap haptics you can turn on or off

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BUILT FOR EVERY SCREEN
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Phones, tablets and TVs. Full D-pad and remote navigation means the whole calculator is usable without a touchscreen.

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WHO IT'S FOR
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School and college students, engineering and science undergraduates, teachers preparing lessons, and anyone who needs a serious calculator that explains its work.

Download Scientific Calculator and start solving — with the steps included.

What’s new

• 14 calculator apps in one: Calculate, Statistics, Table, Equation, Inequality, Distribution, Complex, Matrix, Vector, Spreadsheet, Ratio, Math Box, Base-N and Big Number
• Step-by-Step mode reveals the working one step at a time
• Natural textbook display with exact √, π and fraction results
• Floating calculator that stays on top of any other app
• Works fully offline — no ads, no sign-up