32 lines
602 B
C++
32 lines
602 B
C++
#include "pip.h"
|
|
|
|
void _() {
|
|
//! [main]
|
|
PIEvaluator eval;
|
|
|
|
eval.check("2*sin(pi/2)");
|
|
|
|
piCout << eval.expression() << "=" << eval.evaluate().real();
|
|
// 2*sin(pi/2) = 2
|
|
|
|
eval.check("10x");
|
|
|
|
piCout << eval.error() << eval.unknownVariables();
|
|
// Unknown variables: "x" {"x"}
|
|
|
|
eval.setVariable("x", complexd(1, 2));
|
|
eval.check("10x");
|
|
|
|
piCout << eval.error() << eval.unknownVariables();
|
|
// Correct {}
|
|
|
|
piCout << eval.expression() << "=" << eval.evaluate();
|
|
// 10*x = (10; 20)
|
|
|
|
eval.setVariable("x", complexd(-2, 0));
|
|
|
|
piCout << eval.expression() << "=" << eval.evaluate();
|
|
// 10*x = (-20; 0)
|
|
//! [main]
|
|
};
|