【實用工具app】RPNator|最夯免費app

RPNator is an RPN (Reverse Polish Notation) scientific calculator.

Features:

- Minimalistic design with large buttons.

- Long press for alternate function.

- Postfix notation (to calculate 2*3+4*5, press 2, ENTER, 3, *, 4, ENTER, 5, *, +).

- Unlimited stack.

- Three-line display.

- 16 digits precision.

Operations:

CE / AC - clear entry / clear all stack

LOAD / save - copy saved number to the top / save the current number

ENTER / drop - add the current number to the top / remove the top number

sin / asin - sine / arcsine

cos / acos - cosine / arccosine

tan / atan - tangent / arctangent

exp / pow - exponential / nth power function

sqrt/ cbrt - square / cube root

x^2 / x^3 - square / cube

1/x / root - 1/x / nth root

ln / log - natural logarithm / logarithm to base n

n! - factorial of n

ncr - number of different, unordered combinations of r objects from a set of n objects

npr - number of possibilities for choosing an ordered set of r objects (a permutation) from a total of n objects

rand - random number in a range

rad - convert from degrees to radians

deg - convert from radians to degrees

pi - enter the PI number

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