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# HiDigit's Built-in Functions \$19.95 [ Add to Cart ]

Functions and formulas available in HiDigit calculator.

• General
•  sqrt(x) Square root of x exp(x) Exponent raised to power x ln(x) Natural logarithm of x log(x) Decimal logarithm of x log(x,b) Logarithm of x with various base (b)
• Trigonometry
•  sin(x) Sine of x cos(x) Cosine of x tan(x) Tangent of x cot(x) Cotangent of x asin(x) Inverse sine of x acos(x) Inverse cosine of x atan(x) Inverse tangent of x acot(x) Inverse cotangent of x sinh(x) Hyperbolical sine of x cosh(x) Hyperbolical cosine of x tanh(x) Hyperbolical tangent of x coth(x) Hyperbolical cotangent of x asinh(x) Inverse hyperbolical sine of x acosh(x) Inverse hyperbolical cosine of x atanh(x) Inverse hyperbolical tangent of x acoth(x) Inverse hyperbolical cotangent of x
• Complex numbers
•  re(z) Real part of z im(z) Imaginary part of z abs(z) Magnitude (absolute value) of z arg(z) Argument of z, between -pi and pi
• Statistics
•  sum(x1,x2..xn) Sum min(x1,x2..xn) Minimum max(x1,x2..xn) Maximum mean(x1,x2..xn) Average norm(x1,x2..xn) Euclidean 'L-2' norm stddev(x1,x2..xn) Standard deviation variance(x1,x2..xn) Sample variance