It divides by a hundred, so 50% is 0.5 and 200×10% is 20. It is not the remainder operator.

It uses double-precision floating point, the same as every browser and most pocket calculators, and trims the display so 0.1 + 0.2 reads as 0.3 rather than 0.30000000000000004.

Maths Calculator

Scientific calculator

Expression

Result 0

Live · order of operations respected

Recent

Answers you press = on show up here, and tapping one puts it back in the field.

This calculator evaluates a whole expression at once, respecting the usual order of operations: brackets, then powers, then multiplication and division, then addition and subtraction. It covers trigonometry in degrees or radians, natural and base-10 logarithms, roots, factorials, π and e, and reuses the previous answer through the Ans key.

How to use it

1 Type the expression, or tap it out on the pad. Both edit the same field.

2 The result updates as you type; press = to commit it and start a new line from the answer.

3 Switch DEG and RAD before doing trigonometry — it changes the answer, not the display.

Two conventions are worth stating because calculators disagree about them. Here, −2² is −4: the power binds tighter than the minus sign, so it reads as −(2²). And 2^3^2 is 512, because powers group from the right, giving 2^(3^2). If you want the other reading, use brackets — that is what they are for.

Questions

Does it do implicit multiplication? −

Yes. 2π, 3(4+5) and (1+1)(2+2) all work and mean what they look like.

Do I have to close my brackets? +

What does % do? +

Is it accurate? +

Can I use it from the keyboard alone? +

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