step(x) - the step function (1 if x > 0, 0 otherwise.). These functions are available for some problems, but may not be enabled for others (for authoring information see step functions): sgn(x) - the sign function, either -1 (if x 0).n! - n factorial (defined for nonnegative integers), can also be written as fact(n).Note: All of the trigonometric functions use radian measure. log10(x) - The logarithm to the base 10.log(x) - This is usually the natural logarithm, but some instructors redefine it to mean log to the base 10.ln(x) - The natural logarithm (logarithm to the base e).However, sometimes one or more of these functions is disabled forĪ particular WeBWorK problem because the instructor wants you to calculate the answer by some means other than just using the function. Unless otherwise specified, all of the functions listed below are enabled by default. Mathematical Functions Available In WeBWorK (-inf, 10] all real numbers less than or equal to 10 (inf stands for infinity).[2,5) the half-open interval containing all real numbers greater than or equal to 2 and smaller than 5.all real numbers greater than -2 and smaller than 5 (-2,5) the open interval from -2 to 5, i.e.Some problems require you to enter an interval of real numbers. Mathematical Constants Available In WeBWorK to tell the difference between 1+2/3*4 and / click the "Preview Button".
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