log-bx
koadrobot/math/log-bx
Computes logarithm of `X` to base `B`.
log-bx
@/log-bx
Computes logarithm of `X` to base `B`.
Bnumber
Xnumber
OUTnumber
C++ implementation
#pragma XOD dirtieness disable
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
Number x = getValue<input_X>(ctx);
Number b = getValue<input_B>(ctx);
emitValue<output_OUT>(ctx, log(x)/log(b));
}Tabular tests
| B | X | OUT |
| 0 | 0 | NaN |
| 1 | 1 | NaN |
| 2 | 2 | 1 |
| 10 | 10 | 1 |
| 2 | 7 | 0.3562~ |
| -10 | 10 | NaN |
| Inf | Inf | NaN |
| -Inf | Inf | NaN |