Mathematical expression in cr-Instrument Rules and functions Usage Examples Go Back

.Rules and functions Rules    1.Only the following symbols are allowed: ( ), +, -, *, /    2 All named variables must have parentheses "()". (except x and y)        for example, pi or e or φ are not allowed; use pi() and exp() and phi() instead.    3 .Shorthand notation such as 2x, 3cos(b) is not allowed; use asterisks (*). For example, 2 * x, 3 * cos(), etc.    4.'%' is not allowed; use mod(a,b).    5.'^' is not allowed; use pow(a,b).  Build-in functions      .abs(x): absolute value      .acos(x): arc cosine      .asin:(x) arc sine      .atan(x): arc tangent      .atan2(x,y): Returns the angle theta from the conversion of rectangular coordinates (y, x) to polar coordinates (r, theta).             x - the ordinate coordinate             y - the abscissa coordinate      .avg(a,b,...): average      .cbrt(x): cubic root      .ceil(x): nearest upper integer      .cos(x): cosine      .cosh(x): hyperbolic cosine      .cot(x): cotangent      .csc(x): cosecan      .exp(): e, Euler's number (=2.718281...)      .exp(x): euler's number raised to the power (e^x)      .floor(x): nearest lower integer      .log(x): logarithmus naturalis (base e),log(e)=1      .log10(x): logarithm (base 10)      .log2(x): logarithm (base 2), log2(x)=log(x)/log(2)=log10(x)/log10(2)      .max(a,b,...): mazimum      .min(a,b,...): minimum      .mod(x,y): Remainder, mod(3,2) = 3 % 2 = 1      .phi(): φ, golden ratio, (=1.6180339887....)      .pi(): π, PI, (=3.14159...)      .pow(x,y): power, pow(2,3) = 2 * 2 * 2 = 8      .random(): random value, 0 ~ 1.0      .random(x,y): random value, x ~ y      .round(x): rounding      .sec(x): secant      .sin(x): sine      .signum(x): signum function      .sinh(x): hyperbolic sine      .sqrt(x): square root      .tan(x): tangent      .tanh(x): hyperbolic tangent      .todegrees(x): Converts an angle measured in radians to an approximately equivalent angle measured in degrees.      .toradians(x): Converts an angle measured in degrees to an approximately equivalent angle measured in radians.

.Usage Usage example:

.Examples: Examples             .a=2*17.41+pow((12*2),(0-1)) = 34.86167         .a=pow(exp(),2) - 2 * pi() =1.10587         .a=3 * sin(y) - 2 / (x - 2) = 2.07555  (where "x"=0.5d,"y"=0.25d )         .a=3 * sin(y+x) - 2 / (x - 2) = 3.37825    (where "x"=0.5d,"y"=0.25d )         .a=-3 * x + 2 / exp()+ y*pi()+ 4/phi()            = -3 * 0.5 + 2 / 2.718281 + 0.25* 3.14159+ 4/1.61803398874            = 2.49329  (where "x"=0.5d,"y"=0.25d )         .a=2 * cos(x * y)=1.9844  (where "x"=0.5d,"y"=0.25d )         .a=8+avg(1,2,3,4,5)-min(1,2,3,4,5) =10         .a=-8.9-pow(pow(2,2),pow(2,1)) = -24.9

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