forked from personal/squiggle.c
28 lines
766 B
C
28 lines
766 B
C
#include "../../squiggle.h"
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#include "../../squiggle_more.h"
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#include <math.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define ln lognormal_params
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#define to(...) convert_ci_to_lognormal_params((ci)__VA_ARGS__)
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#define from(...) convert_lognormal_params_to_ci((ln)__VA_ARGS__)
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#define times(a, b) algebra_product_lognormals(a, b)
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int main()
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{
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// set randomness seed
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uint64_t* seed = malloc(sizeof(uint64_t));
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*seed = 1000; // xorshift can't start with 0
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ln a = to({ .low = 1, .high = 10 });
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ln b = to({ .low = 5, .high = 500 });
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ln c = times(a, b);
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printf("Result: to(%f, %f)\n", from(c).low, from(c).high);
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printf("One sample from it is: %f\n", sample_lognormal(c.logmean, c.logstd, seed));
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free(seed);
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}
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