Python cmath-module
Python cmath-module
Python het 'n ingeboude module wat jy kan gebruik vir wiskundige take vir komplekse getalle.
Die metodes in hierdie module aanvaar int, float, en complexgetalle. Dit aanvaar selfs Python-voorwerpe wat 'n __complex__()of __float__()metode het.
Die metodes in hierdie module gee byna altyd 'n komplekse getal terug. As die terugkeerwaarde as 'n reële getal uitgedruk kan word, het die terugkeerwaarde 'n denkbeeldige deel van 0.
Die cmathmodule het 'n stel metodes en konstantes.
cMath Metodes
| Method | Description |
|---|---|
| cmath.acos(x) | Returns the arc cosine value of x |
| cmath.acosh(x) | Returns the hyperbolic arc cosine of x |
| cmath.asin(x) | Returns the arc sine of x |
| cmath.asinh(x) | Returns the hyperbolic arc sine of x |
| cmath.atan(x) | Returns the arc tangent value of x |
| cmath.atanh(x) | Returns the hyperbolic arctangent value of x |
| cmath.cos(x) | Returns the cosine of x |
| cmath.cosh(x) | Returns the hyperbolic cosine of x |
| cmath.exp(x) | Returns the value of Ex, where E is Euler's number (approximately 2.718281...), and x is the number passed to it |
| cmath.isclose() | Checks whether two values are close, or not |
| cmath.isfinite(x) | Checks whether x is a finite number |
| cmath.isinf(x) | Check whether x is a positive or negative infinty |
| cmath.isnan(x) | Checks whether x is NaN (not a number) |
| cmath.log(x[, base]) | Returns the logarithm of x to the base |
| cmath.log10(x) | Returns the base-10 logarithm of x |
| cmath.phase() | Return the phase of a complex number |
| cmath.polar() | Convert a complex number to polar coordinates |
| cmath.rect() | Convert polar coordinates to rectangular form |
| cmath.sin(x) | Returns the sine of x |
| cmath.sinh(x) | Returns the hyperbolic sine of x |
| cmath.sqrt(x) | Returns the square root of x |
| cmath.tan(x) | Returns the tangent of x |
| cmath.tanh(x) | Returns the hyperbolic tangent of x |
cMath konstante
| Constant | Description |
|---|---|
| cmath.e | Returns Euler's number (2.7182...) |
| cmath.inf | Returns a floating-point positive infinity value |
| cmath.infj | Returns a complex infinity value |
| cmath.nan | Returns floating-point NaN (Not a Number) value |
| cmath.nanj | Returns coplext NaN (Not a Number) value |
| cmath.pi | Returns PI (3.1415...) |
| cmath.tau | Returns tau (6.2831...) |