He not only displayed rare skills in mathematics, but he also became a polyglot, able to speak fluently Hebrew, German, Latin, Italian, Spanish, French and Portuguese, in addition to his Czech mother-tongue.

In Olomouc Kresa's other high points included presiding at the academic dissertation of the mathematician and astronomer Jan Taletius, who devised a model to predict eclipses of the sun and of the moon.

One of his private students, Count Ferdinand Herbert, published Kresa's ideas in magazine Acta Eruditorum in 1711.

[2] After nine years in Spain, and the defeat of Charles, Kresa went back to the Czech Crown lands, working with the help of Karel Slavíček[3] on mathematical theories in Brno, where he died in 1715.

[1] Kresa's manuscripts were transcribed for printing by his students František Tillisch and Karel Slavíček, who both later taught at Olomouc.

[1] The lectures Kresa gave at Charles University were recorded by student called Kryštof John, who published them under the title Mathematica in universitate Pragensi tradica a P. Jacobo Kreysa ... excerpta anno 1685.

[1] Kresa's death was followed by a decline in mathematics and science in the Czech Crown lands due to the dogmatic application of Catholic Church doctrines.

It was only a quarter of a century later, that scientific work was resumed by peoples such as Jan Antonín Scrinci (1697–1773) and Joseph Stepling (1716–1778).