Standard calculator functions

Many mathematical functions takes only one parameter. Like sin, cos, tan, sqrt, etc. It is two modes of entering those.

If you write a numeric value, and then press the function key, the number entered is taken as argument of the function automatically, and the closing parenthesis is added.
If you press the function button before, the function is left open, so you can put an equation as an argument to that function. You have to close the parenthesis by yourself.

Mathematical functions

sin(x) - Calculate the sine of the angle X. Sine of the angle between the hypotenuse and adjacent catheter set length ratio of the hypotenuse and opposing catheter. The angualr system is DEG in this version, that means that a full circle is 360 degrees.
cos(x) - Calculate the cosine of the angle X. Cosine of the angle between the hypotenuse and the adjacent catheter specifies the length ratio between the hypotenuse and the adjacent catheter.
tan(x) - Calculate the tangent of the angle X. Tangent to the angle between the hypotenuse and the adjacent catheter indicates the relationship between opposite and adjacent catheter
arcsin(x) - or asin(x) - Calculate the angle from the ratio describet of the sin(x) function. Available from the shift-state.
arccos(x) - or acos(x) - Calculate the angle from the ratio describet of the cos(x) function. Available from the shift-state.
arctan(x) - or atan(x) - Calculate the angle from the ratio describet of the tan(x) function. Available from the shift-state.
sinh(x) - hyperbolic sine of (x)
cosh(x) - hyperbolic cosine of (x)
tanh(x) - hyperbolic tangent of (x)
asinh(x) - arcus hyperbolic sine of (x)
acosh(x) - arcus hyperbolic cosine of (x)
atanh(x) - arcus hyperbolic tangent of (x)
sqrt(x) - Calculate the Square root of X. the square root of the area of a square give length of one side.
cbrt(x) - Cubic Root: cubic root of the volume of a cube, gives the length of one side.
ln(x) - natural logarithm: compute "y" in formula "x = e ^ y", where e is a constant: 2.718281828459.
log(x) - common logarithm: calculate y in the formula "x = 10 ^ y".
e^x - the inverse of ln(x).
10^x - the inverse of log(x).
x² - Power of 2, (x myltiply by x)
x³ - Power of 3, (x multiply by x multiply by x).
x ! - or fact(x) - Calculate the number of permutations. Multiply the chain of numbers from 1....x with each other. Example 5 ! is fact(5)=120 => 1*2*3*4*5. Mainly used in probability calculations.
abs(x) - Absolute value of x. If x is a negative number, it returns the positive x. This function is only available in edit mode, as there is no key for it. It is not a very common function to use on the keyboard, but can have some value in entering formulas.
min(x;y) - returns the less value of x and y. Only enterable in edit mode.
max(x;y) - returns the greatest value of x and y. Only enterable in edit mode.

For a complete list of functions in the formula library, go to the next chapter: How to use the formula library

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