Functions
In the top right corner of the screen you will find a pop-up list named 'func'. The list gives you access to a number of functions for quick reference. The functions are taken from a memo called 'functions' in the 'PawCalc' Memo Pad category. You can use the list in the "functions.txt" file or you can write your own list. The memo starts with the 'functions' keyword following by a one-word name for the list. Then it lists a series of names in quotes. Each name corresponds to an entry in the 'func' pop-up list.
Below you will find a list of functions recognized by PawCalc. (All examples assume degree and not radian mode.)
| Name | Description | Example |
| ^ | power | 4^2 = 16, (1+2i)^2 = -7+24i |
| _ | root | 16_2 = 4 |
| % | remainder | 7%2 = 1 |
| \ | integer division | 7\2 = 3 |
| exp | exponential function base e | exp 2 = e^2 |
| 10^ | exponential function base 10 | 10^3 = 1000 |
| ln | natural logarithm | ln exp 4 = 4 |
| log | base 10 logarithm | log (10^5) = 5 |
| sin | sine | sin 180 = 0 |
| cos | cosine | cos 180 = -1 |
| tan | tangent | tan 180 = 0 |
| asin | arcus sine | asin 1 = 90 |
| acos | arcus cosine | acos 0 = 90 |
| atan | arcus tangent | atan 1 = 45 |
| sinh | hyperbolic sine | |
| cosh | hyperbolic cosine | |
| tanh | hyperbolic tangent | |
| asinh | area hyperbolic sine | |
| acosh | area hyperbolic cosine | |
| atanh | area hyperbolic tangent | |
| erf | error function | |
| erfc | complement error function | |
| fac | factorial | fac 4 = 4! = 24 |
| gamma | gamma function | gamma 5 = (5-1)! = 24 |
| nPr | permutations | 10 nPr 3 = 720 |
| nCr | combinations | 10 nCr 3 = 120 |
| sign | sign | sign -5 = -1 |
| abs | modulo (or absolute value) | abs -5 = 5 |
| mod | modulo (or absolute value) | mod (3+4i) = 5 |
| frac | fractional part | frac 1.2 = 0.2 |
| round | round | round 1.8 = 2, round -1.2 = -1 |
| trunc | trunc | trunc 1.8 = 1, trunc -1.2 = -1 |
| ceil | ceiling | ceil 1.8 = 2, ceil -1.2 = -1 |
| floor | floor | floor 1.8 = 1, floor -1.2 = -2 |
| conj | conjugate | conj (3+4i) = 3-4i |
| re | real part | re (3+4i) = 3 |
| im | imaginary part | im (3+4i) = 4i |
| arg | argument of complex number | arg (1+i) = 45 |
| sqrt | square root | sqrt 16 = 4 |
| and | bitwise and | 0b1100 and 0b0101 = 0b0100 |
| or | bitwise or | 0b1100 or 0b0101 = 0b1101 |
| not | bitwise inversion | not 0b0101 = 65530 |
| xor | bitwise exclusive or | 0b1100 xor 0b0101 = 0b1001 |
| xnor | bitwise exclusive nor | 0b1100 xnor 0b0101 = 0b0110 |
| xnr | same as xnor | |
| & | logical and | 1 and 1 = 1 |
| | | logical or | 0 or 1 = 1 |
| ! | prefix: logical negation | !1 = 0 |
| ! | postfix: factorial | 5! = 120 |
| rand | random number between 0 and 1 | |
| isfinite | 1 if argument is finite, 0 otherwise | isfinite (1/0) = 0 |
All functions for trigonometry work in degrees or radians depending on the settings in the preferences.
The bitwise functions work on 16 bit numbers. The logical functions treat 0 as false and everything else as true. The result is always 0 for false or 1 for true.
Most functions allow both real and complex arguments. All arcus and area trigonometry functions, factorial, gamma and the error functions, and permutations and combinations functions do not work with complex numbers - the imaginary part of the argument is simply assumed to zero. Functions like rounding, sign, and fraction on complex numbers work on the real and imaginary parts in turn. Thus 'sign(3-4i)' is 1-i.