| Expression | Values | | Result | --|-----------------------------|-------------|-----|-------------|- 1 | 0.3*2-6/17-3! | | = | -5.75294... | --|-----------------------------|-------------|-----|-------------|- 2 | 10*e^8/pi^9 | | = | 1.000016... | --|-----------------------------|-------------|-----|-------------|- 3 | 2*sin(pi/4)-sqrt(2) | | = | 0 | --|-----------------------------|-------------|-----|-------------|-
x^y denotes x to the power of y: 2^3 = 2*2*2 = 8.
x! denotes The faculty of x: 4! = 4*3*2*1 = 24.
The arguments of functions must be enclosed in braces and the
multiplication sign has to be written explicitly.
| Expression | Values | | Result | --|-----------------------------|-------------|-----|-------------|- 1 | sin(x)^2+cos(x)^2 | x=0.1 | = | 1 | --|-----------------------------|-------------|-----|-------------|- 2 | sin(x+y) | x=0.8,y=0.4 | = | 0.932039... | --|-----------------------------|-------------|-----|-------------|- 3 | sin(x)*cos(y)+cos(x)*sin(y) | x=0.8,y=0.4 | = | 0.932039... | --|-----------------------------|-------------|-----|-------------|- 4 | x-y | x=$2,y=$3 | = | 0 | --|-----------------------------|-------------|-----|-------------|-
In line 4 x and y are set to the results of line 2 and 3. $z is a
reference to the result of line z. Only numbers and references can
be assigned to the variables in the Values field. Constants or math
expressions are not supported.
| Expression | Values | | Result | --|-----------------------------|-------------|-----|-------------|- 1 | x^2-2 | x=1 | =0 | 1.414213... | --|-----------------------------|-------------|-----|-------------|-
The = character can be changed to =0 by clicking on it. The name of the
variable for which the root is required has to be "x". The start value
given in the Values column has to be close enough to the unknown root.
The root finding is done with the secant method.
The following functions are available:
sin arcsin ln cos arccos sqrt tan arctan
To copy the result double click on it and press the keys ctrl-c. To paste it to a place that you have selected with the mouse before press ctrl-v.